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calculation of three integrals

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Roshdy

Roshdy

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integrations

how those integrals can be performed


∫ x (inv cosh x) dx


∫ (x^8 ) ln (x^5) dx


∫ (1/x) (x^2 -25)^1.5 dx
 

The easy way is to download wxMaxmia from Sourceforge.
wxMaxima can solve these easily.

integrate(x*acosh(x),x)$
grind(%);
x^2*acosh(x)/2-(log(2*sqrt(x^2-1)+2*x)/2+x*sqrt(x^2-1)/2)/2$
 

    Roshdy

    Roshdy

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You still need some help with this...just let me know. I can explain you how to solve it - in mathematical way.
 

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