Problem solving: 1. What is Ax in this expression? 72 4 lim (3+ - 7200 i=1 4i C. : 41 D. A. (3 + )* В. 3+ 3 2. lim E1 5i 4+ 72 A. S Vã dx B. V4 +x dx C. Vã dx D. V4 +x 3. (2x- 2)dx 4. sin x dx

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