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2 September, 20:30

Simplify: (1 - cos^2 x) · (1 + tan^2 x)

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  1. 2 September, 20:48
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    Answer: (-cos²x+1) x (tan²x+1)

    Step-by-step explanation:

    (1-cos²x) x (1+tan²x)

    (-cos²x+1) x (tan²x+1)
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