Stuck on a few....

I think this has something to do with the following questions:

sin(theta) + cos(theta)i = cis(pie/2 - (theta))

Simplify

a. (cos(theta)-sin(theta)i)^5

b. (sin(theta) + cos(theta)i)(cos(theta) + sin(theta)i)

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- February 6th 2007, 03:36 AMclassicstringsComplex Numbers
Stuck on a few....

I think this has something to do with the following questions:

sin(theta) + cos(theta)i = cis(pie/2 - (theta))

Simplify

a. (cos(theta)-sin(theta)i)^5

b. (sin(theta) + cos(theta)i)(cos(theta) + sin(theta)i) - February 6th 2007, 04:00 AMtopsquark