SOLUTION: Let z1=10(cos80+isin80) z2=5(cos100+isin100) Find z1 times z2 in trig and standard form find z1/z2 in trig and standard form thank you,kristi

Question 21984: Let z1=10(cos80+isin80)
z2=5(cos100+isin100)
Find z1 times z2 in trig and standard form
find z1/z2 in trig and standard form
thank you,kristi
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
I haven't taught this for a LONG time (DECADES), but I think I remember it.

z1=10(cos80+isin80)
z2=5(cos100+isin100)
z1*z2 = 10*5 (cos180+i sin 180)= 50(-1) = -50

=2(cos 20 - i sin 20)=1.879 -0.684

R^2 at SCC

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