For the value 18 20 calculate the imaginary componentSolutio

For the value 18 20, calculate the imaginary component.

r<theta=a+jb

theta=inverse tan of(b/a).

r=square root of(a^2+b^2).

18<20 :

tan (20)=b/a

b/a=0.3639

a^2+b^2=18^2=324

b=0.3639a

(0.3639a)^2+a^2=324

a^2(1+0.3639^2)=324

a=16.914

b=0.3639*16.914=6.155

imaginary component=b=6.155.