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For each of the following integrals find an appropriate trigonometric substitution of the form x=f(t)x=f(t) to...

For each of the following integrals find an appropriate trigonometric substitution of the form x=f(t)x=f(t) to simplify the integral.

the inteagral

a) ∫x(3x^2+30x+73)^(1/2)dx

b)∫x/(−25−3x^2+18x)^(1/2)dx

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