Question

integral de 3π/4 a π/4 cossecx cotgx dx ?

Answer 1

Oi Lucas

I(x) = ∫ cossec(x)*cotg(x) dx = - cossec(x) = -1/sen(x)

I(3pi/4) = -1/sen(3pi/4) = -√2 
I(pi/4) = -1/sen(pi/4) = -√2

I(3pi/4) - I(pi/4) = -√2 + √2 = 0

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