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Lerok [7]
2 years ago
10

Simplify Sinx + cosx/ cos²x - sin²x​

Mathematics
1 answer:
bonufazy [111]2 years ago
3 0

\dfrac{\sin x + \cos x}{\cos^2 x - \sin^2 x}\\ \\\\=\dfrac{\sin x + \cos x}{(\cos x + \sin x )\\\\(\cos x - \sin  x)}\\\\\\=\dfrac{1}{\cos x - \sin x}

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