Question

please solve it,and tell me answer​

Answer 1

Step-by-step explanation:

22/7-1/cos 22/7+ sin22/7 /3

π=22/7

Answer 2

Z= (i-1)/[cos(π/3) + i.sin(π/3)]

Z= (i-1)/[(1/2) + i.(√3)/2]

Z= (i-1)/[(1+√3.i)/2]

Z= 2(i-1)/[1+√3.i]