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# De Moivre's Question ???? pls help watch

1. Hi!!!
I've got the question:
Express cos^5(θ)*sin^2(θ) in terms of cosines of multiples of θ

I'm a bit confused but I got the answer (1/32)cos7θ+(1/8)cos5θ+(5/32)cos3θ-(5/16)cosθ.
Any help if I'm wrong pls ????
2. (Original post by ltbitters)
Hi!!!
I've got the question:
Express cos^5(θ)*sin^2(θ) in terms of cosines of multiples of θ

I'm a bit confused but I got the answer (1/32)cos7θ+(1/8)cos5θ+(5/32)cos3θ-(5/16)cosθ.
Any help if I'm wrong pls ????
Well you can easily verify by plugging in for example.
If you're wrong, remember that your question is the same as
3. (Original post by RDKGames)
Well you can easily verify by plugging in for example.
If you're wrong, remember that your question is the same as
ahhh welp i was wrong
time to try ur second suggestion lmao !!! thank you

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