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Current Attempt in ProgressFind the indefinite integral. Check your answer by differentiation.XJdx =+C√x² +5

Current Attempt in ProgressFind the indefinite integral. Check your answer by differentiation-example-1
User Hanin
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1 Answer

16 votes
16 votes

Solution

We solve the inequality


\begin{gathered} Let\text{ }I=\int(x)/(√(x^2+5))dx \\ \\ Let\text{ }u=x^2+5 \\ \\ du=2xdx \\ \\ I=\int(x)/(√(x^2+5))dx=\int(1)/(√(u))*(1)/(2)du \\ \\ I=(1)/(2)\int u^{-(1)/(2)}du \\ \\ I=(1)/(2)*\frac{u^{(1)/(2)}}{(1)/(2)} \\ \\ I=u^{(1)/(2)} \\ \\ I=√(x^2+5)+C \end{gathered}

User Gru
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