Home
Class 11
MATHS
5.The modulus amplitude form of -1-i is ...

5.The modulus amplitude form of `-1-i` is (a) `-sqrt(2)(cos(pi/4)+i sin(pi/4))` (b) `sqrt(2)(cos((3pi)/4)+i sin((3pi)/4))` (c) `sqrt(2)[cos(-(3 pi)/(4))+i sin(-(3 pi)/(4))]` (d) None of these.

Promotional Banner

Similar Questions

Explore conceptually related problems

cos((3pi)/(4)+x)-cos((3pi)/(4)-x) = -sqrt(2)sinx

Prove that: cos((3pi)/4+x)-cos((3pi)/4-x\ )=sqrt(2)sinx

Prove that: cos((3pi)/4+x)-cos((3pi)/4-x)=-sqrt(2)sinx

Prove that: cos((3pi)/4+x)-cos((3pi)/4-x)=-sqrt(2)sinx

Prove that: cos(pi/10)-sin(pi/10)=sqrt(2)sin((3pi)/(20))

Prove that: cos((3pi)/(4)+A)-cos((3pi)/(4)-A)=-sqrt(2)sinA

cos((pi)/(4)-x)cos((pi)/(4)-y)-sin((pi)/(4)-x)sin((pi)/(4)-y)=sin(x+y)

sin^-1 (cos(sin^-1(sqrt(3)/2))= (A) pi/3 (B) pi/6 (C) - pi/6 (D) none of these

Prove that: cos(pi/4+A)+cos(pi/4-A)=sqrt(2)cosA

The period of sin(pi/4)x+cos(pi/2)x+cos(pi/3)x is