Answer Happy

Posted: **Thu Jul 07, 2022 2:24 pm**

: Use The Cosine Of A Sum And Cosine Of A Difference Identities To Find Cos S T And Cos S T S And T In Quadrant I Cos 1 (13.63 KiB) Viewed 43 times

Use the cosine of a sum and cosine of a difference identities to find cos (s+t) and cos (s-t). s and t in quadrant I COS S= and sint= 5 cos (s+t) = (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)