Write the sum as a product:
cos(15.6y)+cos(10.8y)=
Write the product as a sum: 10 sin(31p)cos(3p)
Write the product as a sum: 10 sin(13y)cos(3y) = Preview
Use the sum-to-product formulas to write the sum as a product. sin 7θ − sin 3θ cos 2θ cos 4θ Use the power-reducing formulas to rewrite the expression in terms of first powers of the cosines of multiple angles. sin4(2x)
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°
2. You are required to write the product cos4u cos7u as a sum of two trigonometric functions. Use the identity cos A cos B = ][cos(A – B) + cos(A + B)] cos A cos B = { [cos(A – B) + cos(A + B)]to do so. In this given problem A = ? and B ? therefore cos4u cos7u =
Express the given product as a sum or difference containing only sines or cosines. cos (4x) cos (6x) cos (4x) cos (6x) = 0 (Simplify your answer.)
10. Rewrite the product sin 3x cos 2x as a sum. Answer: 11. Find the exact value of cos 75º cos 15° + sin 75° sin 15° to be one or a weerator
Question 7 Write the product as a sum or difference of trigonometric functions. 2 sin 5x sin 13x 1 (cos 18x + cos 8x) cos 8x - cos 18x sin 18x+ sin 8x cos 18x + cos 8x Question 8 3 pts The function graphed is of the formy a sin bx or y = a cosbx, whereb > 0. Determine the equation of the graph. M + M 4. y=-5 sin (3x) y-.5 cos (3x) y-scos scos () y...
Express the given product as a sum containing only sines or cosines. sin (80) cos (50) sin (80) cos (50) = (Simplify your answer, including any radicals. Use integers or fractions for any n