Posted by **Drake** on Sunday, June 30, 2013 at 8:58am.

Let z be a complex number such that

z=2(cos8∘+icos82∘).

Then z^5 can be expressed as r(sinα∘+icosα∘), where r is a real number and 0≤α≤90. What is the value of r+α?

## Answer this Question

## Related Questions

- Math (Trigonometry [Polar Form]) - Let z be a complex number such that z = 2(cos...
- Math Trigonometry - Let z be a complex number such that z=2(cos3∘+icos87&#...
- Math Trigonometry - Given w=2+2i and v=−5√3+5i, vw^2 can be ...
- Physics HELP!!!! - A small ball of mass m=0.60 kg hangs from a massless string ...
- Physics HELP!! - A small ball of mass m=0.60 kg hangs from a massless string of ...
- Trigonometry - The quadratic equation x^2−9x+10=0 has roots tanα and ...
- ss01 - A small ball of mass m=0.60 kg hangs from a massless string of length l= ...
- Math (Trigonometry) - Given that sin 53∘ = T, how many values of N, ...
- physics - In Physics, it is important to use mathemat- ical approximations. For ...
- Math - Int Trig - Given the functions: f(x)=2x+2 g(x)=3/x^2+2 h(x)=sqrt(x-2) ...