Question

Evalute - Sing3 tsin 27
Cos² 17+ cos² 73​

Answer 1

Step-by-step explanation:

$\begin{gathered} \sin(73) = \cos(17) \\ \\ \cos(73) = \sin(17) \\ \\ \\ s \: o \\ as \: we \: put \: values \: in \: equation \\ \\ \\ \\ \sin(17) {}^{2} + \cos(17) {}^{2} \\ \\ = 1 \\ because \: (sin \: a) {}^{2} + (\cos \: a) {}^{2} = 1\end{gathered}$