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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Originally Posted by classicstrings 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) a) (Similar to ) b) Just expand: -Dan
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