I was able to solve for cos(+) and sin(+), but I am stuck on tan(+). Can you please help me solve tan(+) with a step-by-step explanation?

Find the exact value of the expressions cos (a + (), sin (a + ) and tan (a + ) under the following conditions: 4 - 3 cos (@) = . a lies in quadrant IV, and sin (B) = 7: B lies in quadrant III. - 8910 -9 a. cos (a + P) = 35 (Simplify your answer. Type an exact answer, using radicals as needed. Rationalize all denominators. Use integers or fractions for any numbers in the expression.) 6:10 - 12 b. sin (a + P) = 35 (Simplify your answer. Type an exact answer, using radicals as needed. Rationalize all denominators. Use integers or fractions for any numbers in the expression.) 150 10 - 588 c. tan (a + p) = 559 (Simplify your answer. Type an exact answer, using radicals as needed. Rationalize all denominators. Use integers or fractions for any numbers in the expression.)