"If z= cis(ø) and , show that w = cis ø"
Help! I have tried, but failed on this one!! It is high school level maths!
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Originally Posted by karldiesen "If z= cis(ø) and , show that w = cis ø" This is a complicated exercise in factoring.
First write .
Then note that .
I will let you have the fun of doing the details.
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