Directions: Compute the following limits and state the properties used to justify your computations. 19. lim (-2) X --4 20. lim V2X + 4 X-+2 21. lim x2-5X-6 X-+3 X-6 22. lim (-[x + 4| + 2) X--4 23. lim -x2 - 4x - 3 X -0 Directions: Evaluate the limits of the following functions by applying the different techniques. 24. lim x2-2x-3 X-3 x-3 25. lim ( x+b) ?+ (x+b) 10 4(x+b) 26. lim Vx-3 x-4 x-9 27. lim (x + 1) x--4 28. lim x-a x-avx-va 29. lim 302-7t+2 x-2 2-t 2022/03/08 14:54/x + 5