How to integrate cos^-2x . question from alevel pure maths 3

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.

What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°