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°
Use the product-to sum identities to rewrite the expression as the sum or difference of two functions cos 33° cos 17° On Cos 16° cos 500 1 ов. sin 16° + sin 50° 1 Oc. NI - sin 50° 2 sin 16° 1 OD 1 2 cos 16° cos 50°
Use the product-to-sum identities to rewrite the following expression as a sum or difference. 4sin (35) sin 2π 3
Use the sum-to-product identities to rewrite the expression sin 22° - sin 18° Which expression is equal to sin 22º - sin 18°? O A. 2 cos 20° sin 2° OB. -2 sin 20° sin 2° OC. 2 sin 20° cos 2º OD. 2 cos 20° cos 2°
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 product-to-sum formulas to rewrite the product as a sum or difference. sin 70 sin 30
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 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.)
Use the cosine of a sum and cosine of a difference identities to find cos(s+t) and cos (s-t). 2 4 cos s=5 and sint= 5s 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.)
Use the cosine of a sum and cosine of a difference identities to find cos(s+t) and cos (s-t). coss and sint s and t in quadrant IV COS (s+t)=0 (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) cos (s-t)=0 (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)