please write every answer with question number

Question 14 sin (x) Use the trapezoidal rule with n = 3 to approximate ac 0.8 0 .7 0.6 0.5 0.4 0.3 0.2 0.1 15 2 2 5 0.1 -0.2 sin (x) dx ~ ac Keep at least 2 decimal places accuracy in your final answerQuestion 15 Find the approximate value of x2da . using the trapezoidal rule with three subdivisions. Draw a graph to illustrate. The estimated value is: Give your answer accurate to four decimal places. This answer is an: Oover estimate under estimate Explanation of answer above: because the function is concave up because the function is increasing because the function is concave down O because the function is decreasingQuestion 16 Consider the integral x'dx with 8 subintervals. First, calculate the subdivision x-values: 23 6 8 Second, calculate the Left and Right approximations: L = R = Third, calculate the Trapezoidal approximation: T =