Math  /  Trigonometry

Question=sin(cos6x)+sin6xcosx=sin(x+6x)=sin7x\begin{array}{l}=\sin (\cos 6 x)+\sin 6 x \cos x \\ =\sin (x+6 x)=\sin 7 x\end{array}

Studdy Solution
The given solution, sin7x\sin 7x, is **incorrect**.
The expression sin(cos6x)+sin6xcosx\sin(\cos 6x) + \sin 6x \cos x cannot be simplified to sin7x\sin 7x.
The **correct**, simplified expression is sin(cos6x)+sin6xcosx\sin(\cos 6x) + \sin 6x \cos x.

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