Find sin (x- π/2) if cos x=0.65

For a function to have an inverse, it must be ___________. To define the inverse sine function, we restrict the ____________ of the sine function to the interval ____________.

Sketch the graph of y=2sinx from x=0 to x=2 by making a table using multiples of /2 for x. What is the amplitude of the graph you obtain?