The slope of a line that passes through the points (20 30) and (40 14) is

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

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =