SOLUTION: Express in the form a+bi, where a and b are real numbers. 4(cos(pi/4) + isin(pi/4))

Algebra ->  Trigonometry-basics -> SOLUTION: Express in the form a+bi, where a and b are real numbers. 4(cos(pi/4) + isin(pi/4))      Log On


   

Question 672286: Express in the form a+bi, where a and b are real numbers.
4(cos(pi/4) + isin(pi/4))
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

4(cos(pi/4) + isin(pi/4))= 4%28sqrt%282%29%2F2+%2B+i%2Asqrt%282%2F2%29%29+=+2sqrt%282%29%2B+2sqrt%282%29%2Ai

Thought this (cosx,sinx) summary may be useful in Your studies: