Let P(n)(u) be a polynomial is u of degr...

Let `P_(n)(u)` be a polynomial is u of degree n. Then, for every positive integern, `sin 2n x` is expressible is

`P_(2n)( sin x)`

`P_(2n)(cos x)`

`cos x P_(2n)-1(sin x)`

`sin x P_(2n-1)(cos x)`

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C, D

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