# Question: hello please help me with this problem thank you for...

###### Question details

Hello, please help me with this problem. Thank you for your help.

y = 2 cos(x), and the interval is [−4.01, 4.01].

(a) **What is the error when using midpoints with 10
subintervals? (Do not round your answer.)**

(b) **What is the ratio of the left-endpoint approximation
error to the midpoint error? (Round your answer to two decimal
places.)**

Thank you very much.