QUESTION 1 Let x2 + 1 if -15x

QUESTION 1 Find 12 + 1 9 1 if if As your answer please input the value of the integral in decimal form with three significant digits after the decimal place. QUESTION 2 Find all local extrema of As your answer please input the sum of values of F at the critical numbers in decimal form with three significant digits after the decimal place. QUESTION 3 Find derivative of t2et dt As your answer please input F' in decimal form with three significant digits after the decimal place.