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

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

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 sqrt(5-12i)+sqrt(-5-12i)=z ,then principal value of argz can be (pi)/(4) b.(pi)/(4) c.(3 pi)/(4) d.-(3 pi)/(4)

If z=sqrt(3)-2+i , then principal value of argument z is (where i=sqrt(-1) (1) -(5pi)/(12) (2) pi/(12) (3) (7pi)/(12) (4) (5pi)/(12)

If a complex number z satisfies |2z+10+10 i|lt=3sqrt(3)-5, then the least principal argument of z is a. -(5pi)/6 b. -(11pi)/(12) c. -(3pi)/4 d. -(2pi)/3

If z=sqrt(3)-2+i, then principal value of argument z is (where i=sqrt(-1)-(5 pi)/(12)(2)(pi)/(12) (3) (7 pi)/(12) (4) (5 pi)/(12)

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

The principal value of tan^-1(-1) is [pi/4,-pi/4,pi-pi/4,pi+pi/4]

If sqrt(5-12 i)+sqrt(-5-12 i)=z , then principal value of a rgz can be pi/4 b. pi/4 c. (3pi)/4 d. -(3pi)/4