(1 point) Match each of the trigonometric expressions below with the equivalent non-trigonometric function from the following list. Enter the appropriate letter (A,B,C,D, or E) in each blank. A. tan(arcsin(x/3)) B. cos(arcsin(x/3)) C. (1/2) sin(2 arcsin(x/3)) D. sin(arctan(x/3)) E. cos(arctan(x/3)) X 1. 9-x X 2. V 9 -x2 X 3. V9+x- 3 4. V9+ x2 /9-x2 5. 3