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1. a. Evaluate the following limit: lim ?→4 ( 2? 3−128 √?−2 ) (8 marks) b....

1. a. Evaluate the following limit: lim ?→4 ( 2? 3−128 √?−2 ) b. Find the number ? ???ℎ ?ℎ?? lim ?→−2 ( 3? 2+??+?+3 ? 2+?−2 ) exists, then find the limit

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