Question

sin^2 0degree + cos^2 90 degree

Answer 1

given=>

$\sin {}^{2} (0) + \cos {}^{2} (90)$

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find=>

$\sin {}^{2} (0) + \cos {}^{2} (90) ....(1$

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solution=>

we know that

$= > \sin(0) = 0 \\ \\ = > \cos(90) = 0 ...(2 \\ \\ now \: eq \: 2 \: value \: put \: eq \: 1 \\ \\ = > 0 { }^{2} - 0 {}^{2} = 0$

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answer=0

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I hope it helps you