Cot (pi/2-x) / Cosx

**I know that the answer to the problem is tanxsecx, but how do you get to that answer?

What id the mean of the set? 10, 15, 14, 8, 18, 11, 12, 12, 10, 10, 17, 16

What is the slope of the line through (1,-1) (1,-1) left parenthesis, 1, comma, minus, 1, right parenthesis and (5,-7) (5,-7) left parenthesis, 5, comma, minus, 7, right parenthesis?

Solve: 512^x-2 / (1/64) ^3x=512

Determine x when y=18, if y=9 when x=8

If y=1, then (x+5). y=x+5. which property supports this statement?

8x^2-7x+4x^3-2-3x^2+9x-4

A planet has 5 moons. the moons were in alignment on 1/1/17 at exactly midnight. calculate the next date and time that the moons will be in alignment again

viviana wants to wrap a gift in a box that is 5 inches by 3 inches how much wrapping paper will she need? assume that the paper does not overlap

There are 6 woman running in a race. how many different ways could first, second, and third place finishers occur

On Saturday afternoon, 350 people attended a play. The seating was arranged in 7 equal rows. How many people sat in each row? Draw a bar diagram. Write and solve an equation.