Question 101251
let z1=8(cos5pi/4 + isin5pi/4) and z2=2(cos5pi/12 + isin5pi/12)
Find each of the following in the form a+bi 
a. z1/z2
= (4)(cos[(15pi-5pi)/12 + isin[same])
= 4(cos[(5/6)pi] + isin[same])
= -3.464 + 2i
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b. (z2)^6
= (2^6)(cos[6[5pi/12]] + isin[same])
= 64(cos[(5/2)pi] + isin[same])
= 0 +64i
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Cheers,
Stan H.