How do you prove tan^2(x)+1+tan(x)sec(x)=1+sin(x)/co s^2(x)?

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

What is the solution to the division problem below x3+x2-11x+4/x+4