1.

∫f(x)ϕ′(x)+ϕ(x)f′(x)(f(x)ϕ(x)+1)√f(x)ϕ(x)−1 dx=

Answer» f(x)ϕ(x)+ϕ(x)f(x)(f(x)ϕ(x)+1)f(x)ϕ(x)1 dx=


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