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MCV4U Eg.3: Change of Variables Strategy a) lim- (x - 1) lim x - 1 [2] b) (2x+1)3 -1 [ 2/3 ] c ) lim- (343 + x)3-7 [ 1/147 ] X - X X x - 4 Eg.4: One-sided Limits Strategy lim x-4 x- 4 Consider the following; If we look at f(x) as we approach 4 from above and then as we approach 4 from below, they are not the same therefore the limit DNE