3. When evaluating a limit, what can we say about the limit if it's in the following form? 0 a. Non-zero # O. Non-zero # *how do we know if the limit will be co or -co ? C. 010 d. 00/00 4. Evaluate each limit. a. lim - x2-2x-3 X-3 x2 - x-6 b. lim x2 + 7 x+10 x - -2- x +2 lim- Vx+ 4-3 x-5 x-5 d. lim x2 +7x+10 X -+ 00 x+2 Max/Min. For a given differentiable function f (x) on x E [a, b], what's the general strategy for finding the following? a. local max b. local min c. global max d. global min