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Question 5 of cosa = (0<a<) and tanB = { (0<B<į), find tan(a+B) 5 If cosa = and 2 12 and simplify your answer completely. Sho

Question 9 If sino = 2 3 find cos2e. Simplify you Show all of your work. Failure to show ap Use the editor to format your ans

Question 14 Express sin(8x)cos(4x) as a sum or difference of sines or cosines. Use the editor to format your answer Question

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Answer #1

cosa - 3. tamp=5 12 5 = x= 105 C (3) کس at Y =53.13 ß = 22.62° tem (@to tam (53.13 +22.62) stam (75.75 tan (&+B) 3.937 sino 2(iii) sim (8x) cos(4x) sin (88) cos(4x) 2 2 Ansa 1 sim (124) + Sim (4x) - asinx cosy=sin(x+y)+sin(x-4 # Sim (4x) 2(4.) Cos (9x) Cos (58) =-2 sin (7X (7x) sin (2x) e cosx-cosy=-2 Sin/xty sin /X-4 2 2BY THIS WAY, ANSWER OF GIVEN PROBLEM.

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