Evaluate- -2 xx2-4 d x

I=∫2xx^2+4 dx t=x^2+4 dt=2xdx =∫ #160; 1tdt =log t =log (x^2+4)+c ...

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Integration by Substitution

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Question

Evaluate: $\int \frac{2 x}{(x^{2} + 4)} d x$

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Solution

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