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kobenichan
 one year ago
FAN and MEDAL! :)
Prove: sin θ  sin θ•cos^2 θ = sin3 θ. You must show all work.
I think I use the Pythagorean Identity with this one?
kobenichan
 one year ago
FAN and MEDAL! :) Prove: sin θ  sin θ•cos^2 θ = sin3 θ. You must show all work. I think I use the Pythagorean Identity with this one?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I think you're right :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But in case you need reassurance, try eliminating a common factor and see if the remaining terms look familiar

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0shouldn't it be sin^3 θ not Sin 3θ ??

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.2Oh sorry about that. I forgot to fix it so it read as an exponent >_< sin^3 θ

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.2Should I divide by sin θ to make it all 1  cos^2 θ = sin^2 θ? Ohh so it'll be sin^2 θ + cos^2 θ = 1 when i move the cos around.

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.2Thanks guys :) Sorry I cant give out more than 1 medal.
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