SOLUTION: 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 b. (z2)^6

Algebra ->  Algebra  -> Trigonometry-basics -> SOLUTION: 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 b. (z2)^6      Log On

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 Click here to see ALL problems on Trigonometry-basics 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 b. (z2)^6Answer by stanbon(57347)   (Show Source): You can put this solution on YOUR website!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 ====================== b. (z2)^6 = (2^6)(cos[6[5pi/12]] + isin[same]) = 64(cos[(5/2)pi] + isin[same]) = 0 +64i ================= Cheers, Stan H.