Write the following expression as the sine, cosine, or tangent of a double angle. Then find the exact value of the expression. 2 sin 157.5° cos 157.5° Write the following expression as the sine, cosine, or tangent of a double angle. Select the correct choice below and fill in the answer box to complete your cho (Simplify your answer. Type your answer in degrees. Use integers or decimals for any numbers in the expression.) OA. 2 sin 157.5° cos 157.5° = sin OB. 2 sin 157.5° cos 157.5° = cos OC. 2 sin 157.5° cos 157.5° = tan The exact value of the given expression is (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression. Rationalize the denominator.) 3 # 80 $ 4 4 DOD F4 MacBook Air % 265 Λ 6 & 27 E R T Y U ** 114 9 D F G H J K Time Remaining: 00:31:24 F9 F10 C 01 < C V B N M H P A command T + { ? alt option