Question

sin ^2 .82.1/2-sin^2.22.1/2
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Answer 1

Answer:

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Step-by-step explanation:

sin - cos + 1]/[sin + cos - 1] = [sin + 1]/cosiff [sin - cos + 1]cos = [sin + 1][sin + cos - 1]iff sincos - cos^2 + cos = sin^2 + sincos - sin + sin + cos - 1iff -cos^2 = sin^2 - 11 = sin^2 + cos^2,

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