Solve using the Quadratic Formula Show set up then answer 9) 7x2 + 4x + 2 = 0 a b = %3D |±/O²-4(OO X = 20 X = or X =

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Q: prove the identity Sin [I+X)+ sin (Tーメ エx\= COSX sin / II_ %3D

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A: x2 -12x +32 = 0 here we make part of -12 as  -4  ,-8 x2 - 8x -4x +32=0 x(x-8)-4(x-8) = 0 (x-8)(x-4)…

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Q: 35) if tan(AiB=3and tanB= 1 find tanA

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A: The given angle is 375°To find the coterminal angle

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