indefinite-integration

Question: $\int_{{}}^{{}}{\frac{1}{\log a}({{a}^{x}}\cos {{a}^{x}})dx=}$

1) $\sin {{a}^{x}}+c$

2) ${{a}^{x}}\sin {{a}^{x}}+c$

3) $\frac{1}{{{(\log a)}^{2}}}\sin {{a}^{x}}+c$

4) $\log \sin {{a}^{x}}+c$

Solution:

Explanation: No Explanation

Integration by substitution

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