Prove that : - cos3a-cosa/sin3a-sina+cos2a-cos4a/s in4a-sin2a=sina/cos2acos3a

Which facts are true for the graph of the function below? check all that apply. f(x) = log8 x. (30 points pls )

If (17, 4) is an ordered pair of the inverse of f(x), which of the following is an ordered pair of the function f(x)? a. (17,4) b. (4.17) c. (4,0) d. 0,17)

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2