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Rewrite sin80° in terms of the appropriate cofunction.

User Tin Megali
by
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1 Answer

6 votes

Given the expression:

sin80°

Let's rewrite the given expression in terms of apropriate cofunction.

To rewrite, apply the formula:


\sin x=\cos (90-x)

Hence, we have:


\begin{gathered} \sin 80=\cos (90-80) \\ \\ \sin 80=\cos 10^o \end{gathered}

Therefore, sin80° in terms of the appropraite cofunction is cos(10)°.

ANSWER:

cos10°

User Viacheslav Zhukov
by
7.7k points

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