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1) Simplify each of the following trigonometric expressions a) sin x+tan x tan x b) cos x + sin2x cos x 2) Verify the identitylugogo

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1) Simplify each of the following trigonometric expressions a) sin x+tan x tan x b) cos x + sin2x cos x 2) Verify the identitylugogo to asia. a) cos 0 seco = cote COs x b ) - sin x tano + = 1 secx CSCX diwo ugoq ellt 3) Solve the following equations pollblogat fail a) e4x + 4e2x - 21 = 0 b) logg(x-5) + logg(x+3) = 1 c) 16*-2 = 8x+1 Jusups to mslave aniwolly

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