what trig substitution is correct for 7 tan e 7sine 49sin e 7 sece 49 tane 49sece V49 9-r Write the integral in terms of e for -dx using the answer you 4x chose in #5. DO not simplify. 49-x d in terms of 0? Use your What is the value of the integral answer from #6 to begin your work. What is the value of the integral f 49-x dr in terms of x? Use your 4x result from #7 to answer this question. Use a right triangle or other means to show your work.

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