Question: please help me solving these questions Functions 1. Solve following equations, explain your solutions. a) (x - 1) (x + 2) =0 b) (x -

please help me solving these questions

Functions 1. Solve following equations, explain your solutions. a) (x - 1) (x + 2) =0 b) (x - 1) (x + 2) = -2 c) cos(x) = 2. Solve following inequalities, explain your solutions a) 9x2+ x 5 2 b) 4x + 2 1 1 x2 - 1 x - 1 x +1 3. Simplify a) 3 In(u) - 21n(v) b) lg 25 + Ig 160 - 21g 2 c) logk T d) 2 In 5 - - In 3 1 2 4. For the following, find all exact solutions on the interval 0 S x

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