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3. Compute the following limits. You must justify your solution using algebraic manipulations and / or l'Hopital's rule for full credit. If you use l'Hopital's rule, state the indeterminate form, for example, , or 2. (a) (8 points) lim . 32 x 70 3* - 1 (b) (6 points) lim [In(a2 - 1) - In(x - 1)]. x- 1+