Solve the following limits using any method. If the limit does not exist, determine if it approaches too if possible. cos(x' + x) + x (a) lim X*-00 x2 + 2 ex + x2 + In(x) (b) lim X-+00 3ex + x+1 (x + 1)(x -4) (c) lim x+3- (x - 3) (x- 5)