Question

the valur of sin^2 48⁰+sin^2 42⁰ is​

Answer 1

Answer:

$\sin(90 - \alpha ) = \cos( \alpha ) \\ \sin {}^{2} (48) + \sin {}^{2} (42) \\ = \sin {}^{2} (48) + \cos {}^{2} (48) \\ \\ \sin {}^{2} ( \alpha ) + \cos {}^{2} ( \alpha ) = 1 \\ \\ sin {}^{2} (48) + \cos {}^{2} (48) = 1$

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