Question 813090
(2tanx)(secx)= 1/1-sinx - 1/1+sinx
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(2/cos^2) = 1/(1-sin) - 1/(1+sinx)
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2/(1-sin^2) = 1/(1-sin) - 1/(1+sin)
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Multiply thru by 1-sin^2 to get:
2 = (1+sin) - (1-sin)
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2 = 2sin(x)
sin(x) = 1
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x = pi/2
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Cheers,
Stan H.
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