Can anyone help me with problem 2C, number 3 without using L' Hopital's Rule and number 5. Thank you!

1. Calculate the given limit. (a) 10 points lim x2 + 2x - 15 x - 3 (b) 10 points lim - V4+x - 2 2. Find the limits from the given graph of f(I). 2-1 12345 -2+ (a) 5 points lim f(x) (b) 5 points lim f(x) z-+0+ (c) 5 points lim f(x) (d) 5 points lim f(x) 3. 20 points Find the constant a that makes the function continuous for all values of x. 4 sin a f (x ) = 2 2x