Question

If (cos 0 - i sin 0)2 = x-iy, prove that x² + y² = 1.​

Answer 1

Answer:

y =cos 0 X=sin 0

Step-by-step explanation:

(cos o)whole square +(sin0 )whole

square =1

cos 0=1

sin0=0 then,

(1) square +(0)square= 1+0=1