EXERCISE 5-Following: d/ sinha cosh a dr; Using IBP el 2 logs(12) dr x In 3 In 3 cos a sec(sin a) tan(sin z)3sec(sing) da; Do not use formula 15, but the definition of a" EXERCISE 6: a/ Use the Max-Min Inequality to find the upper and lower bounds for J, In r dx and f2 In a dx. b/ Add these to arrive at an estimate of findx. (Give decimal numbers at the end, for the lower and higher bounds) EXERCISE 7: a/ Starting with y = et, use Logarithmic differentiation to prove the formula (e)' = et. b/ Starting with y = tanh (") with u2