If A = 3 + j1, then A^4 is equal to __________(a) 3.16 ∠18.4°(b) 100 ∠73.72°(c) 100 ∠18.4°(d) 3.16 ∠73.22°I had been asked this question in an internship interview.This question is from Advanced Problems on Network Theory in chapter Network Theory and Complex Circuit Diagram of Network Theory

If A = 3 + j1, then A^4 is equal to __________(a) 3.16 ∠18.4°(b) 10

1.	If A = 3 + j1, then A^4 is equal to __________(a) 3.16 ∠18.4°(b) 100 ∠73.72°(c) 100 ∠18.4°(d) 3.16 ∠73.22°I had been asked this question in an internship interview.This question is from Advanced Problems on Network Theory in chapter Network Theory and Complex Circuit Diagram of Network Theory
Answer» Correct ANSWER is (B) 100 ∠73.72° Easy explanation: GIVEN A = 3 + J1 So, 3 + j1 = 10∠18.43° Or, 3 + j1 = (10)^4 ∠4 X 18.43° = 100∠73.72°.

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