Advanced Engineering Mathematics: Solve for: [z1^(4cos z4)]/log(sub z1)z3

Submitted by agentcollins on

z1= 4^(e^[(-i)(π/4)])
z2= -5i
z3= 3√3<30°

Note: < is the angle sign. I don't have symbol for.the angle sign in my keyboard.

Solve for:
[z1^(4cos z4)]/log(sub z1)z3

Please help :(