13. use identities to write each expression as a function cos (0-2) 120420litev ali lastnamnes with...
Use trigonometric identities to simplify the expression. 1 con) sec2(0+sin(0)cos Answer
Use identities to simplify the following expression. Do not use a calculator. (sinotelua cos pere) car Do not evaluate. Type an exact answer, using π as needed. Use integers or fractions for any numbers in the expression.) Use identities to simplify the following expression. Do not use a calculator. (sinotelua cos pere) car Do not evaluate. Type an exact answer, using π as needed. Use integers or fractions for any numbers in the expression.)
Use the sum/difference identities to simplify the expression. Do not use a calculator. 51 571 COS - + n- ola O A. cos (1) O B. cos (6) OD. cos (5) Find the exact value by using a sum or difference identity. cos 285° 4 OA. - V3 (V3 - 1) O B. V2 (13-1) O C. - 12(73 +1) OD. - v2(13 - 1)
Use the sum-to-product identities to rewrite the following expression as a product. cos(70°) + cos(100°)
Use sum-to-product identities to rewrite the expression as a product. cos 50° + cos 36° O A. 2 cos 43° cos 7° OB. 2 cos 43° sin 7° OC. 2 sin 43° cos 7° OD. - 2 sin 43° sin 7°
Write the expression as a function of 0, with no angle measure involved. cos (60°-o) cos (60° - 0) = (Simplify your answer, including any radicals. Use integers or fractions for any Enter your answer in the answer box.
Use identities to find values of the sine and cosine functions of the function for the angle measure. V2 20, given sin 0 = and cos 0 >0 5 cos 20 = (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) sin 20=0 (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
Use identities to find values of the sine and cosine functions of the function for the angle measure. VE 20, given sin 0 7 and cos 0 cos 20 = (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) sin 20 = (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
(7 pts) Use double angle identities to find the indicated value. 13) cos o = sin 0 <0 Find sin(20).
Use the cosine of a sum and cosine of a difference identities to find cos (s +t) and cos (s-t). 13 sins = " and sint = 2, s and t in quadrant | sin s= - 15 5 -,s and t in quadrant cos (s+t)= (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) cos (s-t)= (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)