Question

if z= -1 +I be a complex number then arg(z) is equal to
π
3π/4
0
π/4 ​

Answer 1

Answer:

Z= -1+i

comparing the given complex number with

Z = x+iy, we get,

x=-1 & y=1

tanθ=y/x= -1

or, θ = π-π/4= 3π/4