Question 1 | 8 points Use a sum or difference formula to nd the exact value of each expression. Give your answers in simplest form. A. cos[%] B. sin 105 Question 2 i 8 points Use a double angle formula to nd the exact value of each expression. Give your answers in simplest form. A. 005(29) if cos a = 13? and e is in le. * B. sin(2a) if 050 a = J? and dis in Qll . Question 3 | 8 points Use a half-angle formula to find the exact value of each expression. Simplify your answers as discussed in this week's videos. A. sin (45) B. c035