These are 2 problems that I'm stumped on and can't get...we are supposed to evaluate the integral using trig substitution. x^2/(3+4x-4x^2) (x^2+1)/(x^2-2x+2)
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Originally Posted by sfgiants13 These are 2 problems that I'm stumped on and can't get...we are supposed to evaluate the integral using trig substitution. x^2/(3+4x-4x^2) [snip] A trig substitution is not needed here because the quadratic is not irreducible. use a partial fraction decomposition
Originally Posted by sfgiants13 [snip] (x^2+1)/(x^2-2x+2) . The first two terms are trivial to integrate. To integrate the last term make the substitution (or just recognise the standard form).
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