Hope it helps.
a) Using a sum or difference formula,find the exact value of sin n( 112 ). b) Prove that cos(a + b) cos a cos B - 1 -tan a tan ß.
Use a sum or difference formula to find the exact value of the following Use a sum or difference formula to find the exact value of the following. 271 410 21 41 sin + cos sin 5 15 15 COS 0 8 Х
Find the exact value of the expression cos(sin If sin = sin 2 15 find the exact value of cos(20) Solve sin 2x = cos 2x, where 0 <x<21.
Find the exact value of: sin(cos^-1(-5/13) + tan^-1(8/15 12. Find the exact value of: sin(cos + tan 13
14. use sum or difference identity to find the exact value. sin 15°
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
(5 points) Use a sum/difference identity to find the exact value of cos( -15°). Do not use reference angles i.e do not calculate cos 15° You should be able to do this with only a sum/difference identity and standard angles. No Decimal Approximations.
Use a sum or difference formula to find the exact value of the trigonometric function. sin 12 TT sin 12 (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
Find the exact value of the expression. sin (30) sin(90°) - cos (30) cos(90°) = Find the exact value of the expression. sin( – 45° ) sin( - 30°) = [ Write each expression as a single trigonometric function. sin(7x)cos(3x) – cos(7:c )sin(32) = Write each expression as a single trigonometric function. cos(6.c )cos(3x) - sin(62) sin(30) = Write each expression as a single trigonometric function. cos(7x)cos (4:0) + sin(78) sin(4x) =
Express the sum or difference as a product. If possible, find the exact value of this product. sin sin 7x 12 12 Express the difference as a product. 7 sin sin Find the exact value of the product obtained above. (Simplify your answer. Type an exact answer, using radicals as needed. Use integers or fractions for any nu denominators.)