Question: 4. (i) Solve the equation eff+2 = 2, i.e., you must find r; (ii) Solve the equation In(4x) = 3, i.e., you must find r;

4. (i) Solve the equation eff+2 = 2, i.e., you must find r; (ii) Solve the equation In(4x) = 3, i.e., you must find r; (iii) Find f'(3) if f(x) = cos(ex-3)
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