proof of sin x=sin (2n+1)pi/2
 

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Please find below the solution to the asked query:

$$\begin{gathered} \mathrm{There} \mathrm{is} \mathrm{no} \mathrm{proof} \mathrm{like}: \\ \sin \left(\mathrm{x}\right)=\sin \left\{\left(2\mathrm{n}+1\right)\frac{\mathrm{\pi }}{2}\right\} \\ \sin \left\{\left(2\mathrm{n}+1\right)\frac{\mathrm{\pi }}{2}\right\} \mathrm{just} \mathrm{represents} \mathrm{sine} \mathrm{function} \mathrm{at} \mathrm{odd} \mathrm{multiples} \mathrm{of} \frac{\mathrm{\pi }}{2} \mathrm{where} \sin \left(\mathrm{x}\right) \mathrm{is} \mathrm{complete} \\ \mathrm{sine} \mathrm{function}. \\ \mathrm{You} \mathrm{should} \mathrm{recheck} \mathrm{your} \mathrm{question} \mathrm{and} \mathrm{post} \mathrm{complete} \mathrm{question}. \mathrm{Don}\text{'}\mathrm{t} \mathrm{left} \mathrm{anything} \mathrm{for} \\ \mathrm{experts} \mathrm{to} \mathrm{assume}. \mathrm{Please} \mathrm{be} \mathrm{precise} \mathrm{so} \mathrm{that} \mathrm{we} \mathrm{can} \mathrm{help} \mathrm{you} \mathrm{fast}. \end{gathered}$$

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