It is given that z1= 3 cis (3π/4) and z2= 2 cis (nπ/16), n∈ℤ+
(a) In parts (a)(i) and (a)(ii), give your answers in the form r e iθ, r≥ 0 , − π
(i) Find the value of z13
(ii) Find the value of (z1/z2)4 for n= 2 .
(b) Find the least value of n such that z1z2∈ℝ+
