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OpenStudy (anonymous):
Verify each trigonometric equation by substituting identities to match the right hand side of the equation to the left hand side of the equation. cot x sec4x = cot x + 2 tan x + tan3x @ganeshie8
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OpenStudy (anonymous):
you did this question before but i don't quite understand it.
OpenStudy (anonymous):
cotx+2tanx+tan3x 1tanx+2tanx+tan3x 1+2tan2x+tan4xtanx 1+tan2x+tan2x+tan4xtanx sec2x+tan2x+tan4xtanx sec2x+tan2x(1+tan2x)tanx sec2x+tan2x(sec2x)tanx sec2x(1+tan2x)tanx sec2x(sec2x)tanx sec4xtanx cotxsec4x
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