1.\int \frac{3^x dx}{\sqrt{9^x - 1}} =a.\frac{1}{\log 3} \log|3^x + \sqrt{9^x-1}| + cb.\frac{1}{\log 3} \log|3^x - \sqrt{9^x-1}| + cc.\frac{1}{\log 9} \log|3^x + \sqrt{9^x-1}| + cd.\frac{1}{\log 3} \log|9^x + \sqrt{9^x-1}| + cLogin to continueOnly logged in users canattempt or see the solution.
