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9:19 Done myopenmath.com AA Assignment 7.4: Sum-to-Product and Product-to-Sum Identities Score: 0/60 0/6 answered Progress saved Done VO . . . Question 5 > 0/ 10 pts 9 5 99 0 Details 1 + cos (2y) Prove the following identity: sin (2y) tan(y) 1 + cos(2y) sin(2y) Question Help: Video Submit Question Jump to Answer 0/ 10 pts 9 5 99 0 Details 7 If cot (x) = 12 (in Quadrant-1), find cos (2x) (Please enter answer accurate to 4 decimal places.) Submit Question Jump to Answer 0/ 10 pts 9 5 99 0 Details If csc(a) = 8, for 90 0/ 10 pts 9 5 99 0 Details If sin x = x in quadrant I, then find (without finding x) : sin (2x) = cos (2x) = tan (2x) = Question Help: D Video 1 D Video 2 Submit Question Jump to Answer