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0 votes
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in Indefinite Integral by (28.4k points)
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Evaluate the following integrals : 

∫(tan x + cot x)2 dx

1 Answer

+1 vote
by (29.5k points)
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Best answer

Given :

We know that, 

tan2x = sec2x - 1 

cot2x = cosec2x - 1

We know that,

I = tanx – cotx - c

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