3. Evaluate the following limits using L'Hopital's Rule. Show working for all your steps. a) limp +27 r sinc+12-4x2 b) limpHot (cotr - ?) c) limpHO T CSCE d limpHot (1 + x) cot x 4. Find the third order Taylor's polynomial for f(x) = cos '(x) , centered at zero. 5. Approximate - 1 V1.05 using f(x) = and T2(x) = 1 - + 3