GATE 2016 7TH FEB SOLUTION/ KEY : ELECTRICAL
Q.6 Consider the function ݂f(z)= z+z∗ where z is a complex variable and z∗ denotes its complex conjugate. Which one of the following is TRUE?
(A) ݂f(z) is both continuous and analytic
(B) ݂f(z) is continuous but not analytic
(C) ݂f(z) is not continuous but is analytic
(D) f(z) is neither continuous nor analytic
Answer:
Q.7 A 3 × 3 matrix P ܲ is such that, P3 = P. Then the eigenvalues of ܲ are
(A) 1, 1, −1
(B) 1, 0.5 + j݆0.866, 0.5 − ݆j0.866
(C) 1,−0.5 + j݆0.866, −0.5 − ݆j0.866
(D) 0, 1, −1
Answer: (A) 1, 1, −1
Q.8 The solution of the differential equation, for t>0, y"(t) + 2y'(t) + y(t) = 0 with initial
conditions y(0)=0, and y'(0)= 1, is u(t) denotes the unit step function
Answer: A
Q.9 The value of the line integral
(A) 0
(B) 2
(C) 4
(D) 6
Answer: 2
Q.10 Let f(x) be a real, periodic function satisfying ݂f(-x)= -f(x). The general form of its Fourier series representation would be
Answer: (D)
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