SOLUTION: how do I verify that 1-cos(x^2) / 1 + cos(x^2) = sin(x^4)

SOLUTION: how do I verify that 1-cos(x^2) / 1 + cos(x^2) = sin(x^4)

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Question 704572: how do I verify that
1-cos(x^2) / 1 + cos(x^2) = sin(x^4)
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
how do I verify that
1-cos(x^2) / 1 + cos(x^2) = sin(x^4)
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Is it ?
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