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trigonometric identity

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3 items are filed under this topic.
A trig identity 2006-03-28
From Iqbal:
Could you please prove,

Answered by Stephen La Rocque.

A trigonometric identity 2006-01-22
From Sarfaraz:
Prove the following trigonometric identity.
sin2x = tan2x/(1+tan2x)

Answered by Penny Nom.
A trigonometric identity 2002-03-22
From Debby:
I am stuck on a problem and wondering if you can help?? It is: Prove the following:
sec2(X)+csc2(X) = sec2(X)csc2(X)

Answered by Harley Weston.



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