Which of the following sets contains only rational numbers? OA. (3.5, 97, 13.19, V9}
OB. {V43, 3.5, 3, 97}
OC. (3.5, 102, 13, 13.19}
OD. {TT, 97, 9, 13.19}

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

Consider the following equation. 1/2x^3+x-7=-3sqrtx-1 approximate the solution to the equation using three iterations of successive approximation. use the graph below as a starting point. a. b. c. d.