Please help me, ill give brainliest.

What basic trigonometric identity would you use to verify that csc x sec x cot x = csc^(2)x

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

Math question.. plz me .. best answer all