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Part II. Please show your work. Unjustified answers will not be considered. (1) Consider the function -2 (a) (1pt) Determine lim f(x) x- -2- (b) (1pt) Determine lim f(x) x- - 2+ (c) (1pt) Does lim f(x) exist? Justify your answer. If yes, determine its value. (d) (1pt) Is the function f continuous at x = 10? Justify your answer. (2) (2pts) Find the derivative g'(x) of the function g(x) = / evs ds. (3) (a) (1pt) Verify by differentiation that the following formula is correct - sin x - cos x COS X dx = + C - sin x - cos (b) (1pts) Evaluate dx. (4) (2pts) Evaluate the Riemann sum for f(x) = (x + 1)2, -1