These questions are about calculus. I would like these all solved correctly.

Question 8 Evaluate the following integral. Not yet answered sin(3 x)dx = Marked out of 1.00 Flag questionQuestion 7 Not yet answered Marked out of 1.00 F Flag question Evaluate the following integral /ml:1 Question 6 Use calculus methods to find the point on the line y = -2 x + 5 that is closest to the origin. Not yet answered ( x, y ) = Marked out of 1.00 Flag Recall that the distance between points (x, y) and (x0, yo) is given by the formula: s = V(x - x0)2 + (y - yo)2 . question Hint: Since distance is always positive, you may find it easier to minimise the function s