The amplitude of `1/i` is equal to `0` b. `pi/2` c. `-pi/2` d. `pi`

The amplitude of 1/i is equal to a. 0 b. pi/2 c. -pi/2 d. pi

The principal value of the amplitude of (1+i) is A. pi B. pi/(12) C. pi/4 D. (3pi)/4

The amplitude of (1+isqrt(3))/(sqrt(3)+i) is a. pi/3 b. -pi/3 c. pi/6 d. -pi/6

The principal value of the amplitude of (1+i) is pi b.(pi)/(12) c.(pi)/(4) d.(3 pi)/(4)

The argument of (1-i)/(1+i) is a. -pi/2 b. pi/2 c. (3pi)/2 d. (5pi)/2

If tanA=a/(a+1) and tanB=1/(2a+1) then the value of A+B is: (a). 0 (b). pi/2 (c). pi/3 (d). pi/4

The argument of the complex number (i/2-2/i) is equal to (a) pi/2 (b) pi/4 (c) pi/12 (d) (3pi)/4

int_0^(pi//2)1/(1+cot^3x)dx is equal to 0 b. 1 c. pi//2 d. pi//4

If x in [0. (pi)/(2)], y in [0, (pi)/(2)] and sin x + cos y =2, then the value of x+y is equal to........ A) 2pi B) pi C) pi/4 D) pi/2

If xcosy+ycosx=pi then the value of y' '(0) is equal to pi (b) -pi (c) 1 (d) 0