Question 3 3 Not yet The value of integral sin xdx, n= 6 by Trapezoidal rule is(up to 4 decimal digit) answered Marked out of Answer: Flag question Previous page Question 4 If f(x,y)=sin (2x+y) then the derivative fe is Not yet answered Marked out of 1.00 a. 2 cos (2x+y) b. cos (2x+y) Flag question c. 2 sin (2x+y) d. 2 cos(x+y) O d) O b) c) a)