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solve: tan2x = 8cos^2x - cotx

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with the given intervals : [ 0 ≤ x ≤ pi/2 ].

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asked Mar 8, 2014 in TRIGONOMETRY by johnkelly Apprentice

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1 Answer

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The expression is

Multiply each side by

Let

Let

answered Apr 9, 2014 by ashokavf Scholar

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