indefinite-integration

Question: $\int_{{}}^{{}}{\frac{\cos x-\sin x}{\sqrt{\sin 2x}}\ dx}$ equals



1) ${{\cosh }^{-1}}(\sin x+\cos x)+c$
2) ${{\sinh }^{-1}}(\sin x+\cos x)+c$
3) $-{{\cosh }^{-1}}(\sin x+\cos x)+c$
4) $-{{\sinh }^{-1}}(\sin x+\cos x)+c$
Solution: Explanation: No Explanation
Integration by substitution

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