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`

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)

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

If z=(-2)/(1+isqrt(3)) , then the value of "arg"(z) is a. pi b. pi/4 c. pi/3 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)

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

Write the modulus and principal arguments of the complex no.z=4(cos((pi)/(4))+i sin((pi)/(4)))

If sin x+sqrt(3)cos x=sqrt(2) then general solution of x 2n pi+(pi)/(12) 2n pi-(pi)/(12) 2n pi+(5 pi)/(12) 2n pi-(5 pi)/(12)

The value of int_0^pi1/(5+3cosx)dx is pi//2 b. pi//4 c. 0 d. pi//8

The solution set of the equation 4s int h eta cos theta-2cos theta-2sqrt(3)s int_(h eta)+sqrt(3)=0 in the interval (0,2 pi) is {(3 pi)/(4),(7 pi)/(4)} (b) {(pi)/(3),(5 pi)/(3)}{(3 pi)/(4),pi,(pi)/(3)(5 pi)/(3)}(d){(pi)/(6),(5 pi)/(6),(11 pi)/(6)}