(i) The two sides of a rectangle are x units and (10 - x) units. For what value of x, the area of rectangle will be maximum? (ii) Prove that a rectang

(i) The two sides of a rectangle are x units and (10 - x) units. For what value of x, the area of rectangle will be maximum? (ii) Prove that a rectang
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(i) The two sides of a rectangle are x units and (10 - x) units. For what value of x, ... area is constant has minimum perimeter if it is a square.
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