What’s the answer to this problem

What is the value of this expression when b= 5 6 (2b-4)

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

Suppose that x and y are both differentiable functions of t and are related by the given equation. use implicit differentiation with respect to t to determine startfraction dy over dt endfraction in terms of x, y, and startfraction dx over dt endfraction .