1. Suppose a square is expanding. When the length of each side is 10 inches, its area is increasing at a rate of 160 square inches per second. Find the rate at which the length of each side is increasing. 2. Which function dominates as x - co : x and en 1-ex 3. Evaluate lim x-0 x +2x 4. Evaluate lim x->0 X sin(x) 5. Evaluate lim sinh(2x) x->0 X