A linear time -invariant control system with unsatisfactory steady state error is to be compensated. Which is/are the correct type of cascade compensation to be provided ? 1. Lead 2. Lag 3. Lag -lead Select the correct answer using the codes given below : (a) 1 only (b) 2 only (c) 3 only (d) 1, 2 and 3

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A linear time -invariant control system with unsatisfactory steady state error is to be compensated. Which is/are the correct type of cascade compensation to be provided ? 1. Lead 2. Lag 3. Lag -lead Select the correct answer using the codes given below : (a) 1 only (b) 2 only (c) 3 only (d) 1, 2 and 3

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