Simplify cotx/cos(-x)

In triangle opq right angled at p op=7cm, oq-pq=1 determine the values of sinq and cosq

Sam is picking fruit from a basket that contains many different kinds of fruit. which set of events is independent?

Johnny rode his bike to a friends house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was unable to play. what was his displacement for the total bike ride trip? what could you use as a reference point ? show the steps to solve this problem.