Evaluate the integral 0x 81 sec 0 Ox 9 tan 0 x 9 sin 0 Ox 81 tan 0 Ox 9 sec 0 A Which trig substitution is correct for this integral O x 81 sin 0 282 1 cot 0 81 x dx B Which integral do you obtain after substituting for and simplifying Note to enter type the word theta 1134 sin de C What is the value of the above integral in terms of 0 D What is the value of the original integral in terms of x 1 1 x sin 2 sin x 1 2 4 C C