Let A be a `2xx2` matrix with real entries. Let I be the `2xx2` identity matrix. Denote by tr (A), the sum of diagonal entries of A. Assume that `A^2=

1 Answer

Answer :

Let A be a `2xx2` matrix with real entries. Let I be the `2xx2` identity matrix. Denote by tr (A) ... D. Statement -1 is false, statement -2 is true.

Related questions

Description : Transpose of a column matrix is a.Zero matrix b.Identity matrix c.Row matrix d.Diagonal matrix

Last Answer : c.Row matrix

Description : Write a Numpy program to create a 3x3 identity matrix, i.e. diagonal elements are 1, the rest are 0. Replace all 0 to random number from 10 to 20 -Technology

Last Answer : import numpy as nparray1=np.identity(3)print(array1)x=np.where(array1==0)for i in x:array1[x]=np.random.randint(low=10,high=20)print(array1)

Description : Write a Numpy program to create a 3x3 identity matrix, i.e. non diagonal elements are 1, the rest are 0. Replace all 0 to random number from 1 to 10 -Technology

Last Answer : import numpy as npZ = np.arange(9).reshape(3,3)print (Z)x=np.where((Z%2)==0)for i in x:Z[x]=np.random.randint(low=10,high=20)print(Z)

Description : Let `[epsilon_(0)]` denote the dimensional formula of the permittivity of the vacuum, and `[mu_(0)]` that of the permeability of the vacuum. If `M = m

Last Answer : Let `[epsilon_(0)]` denote the dimensional formula of the permittivity of the vacuum, and `[mu_(0)]` that of the ... . `mu_(0) = [ML^(2)T^(-1)I]`

Description : Consider the following statements: (a) Revised simplex method requires lesser computations than the simplex method. (b) Revised simplex method automatically generates the inverse of the current basis matrix. (c) Less number of entries are needed ... c) only (C) (b) and (c) only (D) (a), (b) and (c)

Last Answer : (D) (a), (b) and (c)

Description : Statement 1: The product of two diagonal matrices of order 3 is also a diagonal matrix. Statement -2 : In general, matrix multiplication is non-commut

Last Answer : Statement 1: The product of two diagonal matrices of order 3 is also a diagonal matrix. Statement -2 ... Statement -1 is false, statement -2 is true.

Description : Name the diagonal elements and off diagonal elements of bus impedance matrix.

Last Answer : The diagonal elements of bus impedance matrix are called driving point impedances of the buses and off diagonal elements of bus impedance matrix are called transfer impedances of the buses.

Description : Name the diagonal and off diagonal elements of bus admittance matrix.

Last Answer : The diagonal elements of bus admittance matrix are called self admittances of the buses and off diagonal elements are called mutual admittances of the buses.

Description : Which of the following is true about Stiffness matrix a. Diagonal matrix b. Symmetric matrix c. Positive Definite d. All of the above

Last Answer : d. All of the above

Description : For stable structures, one of the important properties of flexibility and stiffness matrices is that the elements on the main diagonal (i) Of a stiffness matrix must be positive (ii) Of a stiffness matrix must be negative (iii) Of ... ) (B) (ii) and (iii) (C) (i) and (iv) (D) (ii) and (iv)

Last Answer : (A) (i) and (iii)

Description : The diagonal elements of a nodal admittance matrix are strengthened by adding :  (A) Shunt capacitors (C) Generators (B) Shunt inductances (D) Resistive loads

Last Answer : A

Description : All entries in the balance of payments should collectively sum to (a) GDP of that country ; (b) GNP of that country ; (c) Zero ; (d) Exports of that country. 

Last Answer :  (c) Zero

Description : Frame the formula for the area (A) of a quadrilateral given by half the product of its diagonal (d) and sum of offsets drawn to the diagonal from its

Last Answer : Frame the formula for the area (A) of a quadrilateral given by half the product of its diagonal (d) and ... its opposite vertices `(h_(1) and h_(2))`?

Description : The value of off diagonal elements is a) sum of admittances connected at bus j b) which is connected between bus i and bus j with positive sign c) which is connected between bus i and bus j with negative sign d) sum of admittances connected at bus i

Last Answer : c) which is connected between bus i and bus j with negative sign

Description : Closing entries are necessary for a. permanent accounts only. b. temporary accounts only. c. both permanent and temporary accounts. d. permanent or real accounts only.

Last Answer : b. temporary accounts only.

Description : Assume you're a nature photographer and you find a turtle on its back struggling to right itself. Do you help it or do you let nature run it's course?

Last Answer : Oh, I’d have to help it. No question. I wouldn’t take pictures of it after I did it though… that wouldn’t be accurately portraying nature, would it?

Description : Let us assume that you construct ordered tree to represent the compound proposition (~(p˄q))↔(~p˅~q). Then, the prefix expression and post-fix expression determined using this ordered tree are given as ........... and .......... ... ~p~q~˅↔ (C) ↔~˄pq˅ ~~pq, pq˄~p~ ~q˅↔ (D) ↔~˄pq˅ ~p~q, pq˄~p~~q˅↔

Last Answer : (B) ↔~˄pq˅ ~p~q, pq˄~p~q~˅↔

Description : How do you denote laughter online?

Last Answer : Wha-ha-ha! Usually LOL! It’s easier.:)

Description : Who else thinks we should have punctuation to denote sarcasm?

Last Answer : like LOL ? (except SAR)?

Description : How do you denote sarcasm/humor in written text?

Last Answer : Related reading: http://en.wikipedia.org/wiki/Sarcasm_mark

Description : Which letters denote Jesus Nazareth King of the Jews?

Last Answer : INRI

Description : In an equilateral triangle if a, b and c denote the lengths of the perpendicular from A, B and C respectively on the opposite sides, then -Maths 9th

Last Answer : b=2c=3​⇒⇒b=3​c=23​​cosA=2bcb2+c2−a2​⇒23​​=33+43​−a2​⇒233​​=415​−a2 ⇒a2=415​−43​​⇒a=1.673278 We know sinaa​=2R1​⇒R=2asina​=221​​=41​

Description : The term nishka, which meant an ornament in the Vedic period, was used in latertirnes, what did it denote? -General Knowledge

Last Answer : The answer is 'A coin'

Description : In the Vedic society, which was the term used to denote a group of families? -General Knowledge

Last Answer : The answer is 'Grama '

Description : The term nishka, which meant an ornament in the Vedic period, was used in latertirnes, what did it denote? -General Knowledge

Last Answer : answer:

Description : The term nishka, which meant an ornament in the Vedic period, was used in latertirnes, what did it denote? -General Knowledge

Last Answer : answer:

Description : In the Vedic society, which was the term used to denote a group of families? -General Knowledge

Last Answer : answer:

Description : In the Vedic society, which was the term used to denote a group of families? -General Knowledge

Last Answer : answer:

Description : Using words that imitate the sound they denote -Do You Know?

Last Answer : Onomatopoeia is the process of creating a word that phonetically imitates, resembles, or suggests the sound that it describes. Such a word itself is also called an onomatopoeia. ... For words that imitate sounds, the term or echomimetic) is used.

Description : What does the following equation denote? Amino acid + ATP `rarr` Aminoacyl AMP + PP

Last Answer : What does the following equation denote? Amino acid + ATP `rarr` Aminoacyl AMP + PP A. Chain ... C. Elongation of chain D. None of the above

Description : Cases of Feral/unsocialised children denote the significance of socialization.

Last Answer : State whether the following statement are true or false with reason : Cases of Feral/unsocialised children denote the significance of socialization.

Description : Are used to denote the of atoms of each in the molecule?

Last Answer : Chemical symbols and coefficients are used.

Description : In ancient times the name Ratnakar denote (a) Arabian Sea (b) Bay of Bengal (c) Indian Ocean (d) Confluence of Ganga, Yamuna and Saraswati

Last Answer : Ans: (a)

Description : The term used to denote chance of happening or not happening of an event.

Last Answer : Ans. Probability

Description : If people's income of a country is denoted in a curved line space that it has increased, then what does it denote? (1) the income is increasing (2) the income is decreasing (3) dissimilarity is decreasing in income distribution (4) dissimilarity in income distribution is increasing

Last Answer : (3) dissimilarity is decreasing in income distribution Explanation: It shows inequality in income distribution. Inequality indices can also be derived directly from the Lorenz curve. Perhaps the most commonly- ... by the Lorenz curve and the perfect equality line to the total area below that line.

Description : The term nishka, which meant an ornament in the Vedic period, was used in  latertirnes, what did it denote?

Last Answer : A coin

Description : In the Vedic society, which was the term used to denote a group of families?

Last Answer : Grama

Description : Which symbol will be used to denote an micro operation. a. (*) b. (v) c. Both d. None

Last Answer : b. (v)

Description : Generally Accepted Auditing Standards (GAAS) and Philippine Standards on Auditing (PSA) should be looked upon by practitioners as a. Ideals to work towards, but which are not achievable. b. ... excellent work. d. Minimum standards of performance which must be achieved on each audit engagement.

Last Answer : Minimum standards of performance which must be achieved on each audit engagement.

Description : Form ACG 20 is denote ----- a. Monthly Bills b. Arrear Bills c . Bonus Bills

Last Answer : a. Monthly Bills

Description : What does the term free-market denote in terms of economy? a) Minimal government intervention in trade and minimum regulations b) Maximum government intervention in trade and maximum regulations c) Means of production owned by the state d) None of the above

Last Answer : : a) Minimal government intervention in trade and minimum regulations

Description : Which of the following terms refers to a muscular, cramp-like pain in the extremities consistently reproduced with the same degree of exercise and relieved by rest? a) Intermittent claudication Intermittent ... or dilated vessel. d) Ischemia Ischemia is a term used to denote deficient blood supply.

Last Answer : a) Intermittent claudication Intermittent claudication is a sign of peripheral arterial insufficiency.

Description : The concentraction of hydrogen ion (H+ )is denoted by pH.How do you denote concentration of hydrogen ion(OH)?

Last Answer : Ans:The concentration of hydrogen ion (OH) is denoted by poH.

Description : SONET uses a ____________________ to denote the starting position of an information frame.

Last Answer : pointer

Description : Karl Witfogel suggest that this idea, used by Karl Marx in his writings, was dismissed by Soviet-era theoreticians because it reminded them too much of life under Stalin. What concept, used by ... both militarily and through land-holding and means of irrigation in a certain region of the world?

Last Answer : Asiatic mode of production.

Description : This term comes from the Islamic world and could denote either the crushing or the cooking operations carried out on the whole wheat used in Middle-Eastern preparations such as Tabbouleh. What term?

Last Answer : Bulgur

Description : 1. The term “homothallic “and monoecious” are used to denote: a) Unisexual condition b) Bisexual condition c) staminate flowers d) pistillate flowers

Last Answer : b) Bisexual condition

Description : Which of the following attributes denote great strengths of a teacher? (a) Full-time active involvement in the institutional management (b) Setting examples (c) Willingness to put assumptions to the test (d) Acknowledging mistakes Select the ... (C) (a), (c) and (d) (D) (a), (b), (c) and (d)

Last Answer : Answer: B