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$\int{\sqrt{x-3}(\sin^{-1}(\ln{x})+\cos^{-1}(\ln{x}))\ dx}$ what is the answer because I have a problem

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    @Reader: $\int \sqrt{x-3} \{\sin^{-1}(\ln x)+\cos^{-1}(\ln x)\}\mathrm{d}x$ ?2012-10-29

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Use the fact that $\arccos a + \arcsin a =\frac {\pi}2$ for $0 \le a \le \frac {\pi}2$

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    @PrashantGupta Try substituting $\sqrt{x-3}=u$.2012-10-29