1. 2. 3. Using a left Riemann sum, what is the area under the curve y= x + x from x = 0 to x = 3, with 6 subintervals. A. 16.625 Using a left Riemann sum, what subintervals. A. 1.896 n A. lim f 2+ 118 B. lim n-8 k=1 3k . (*) k=l n C. lim f Match the Riemann Sum in the left column to the appropriate definite integral on the right. k=1 B. 13.4375 C. 113.5 B. 2.000 k=l 4k D. Him [(1+) 118 2k C. 1.948 D. 13.625 the area under the curve y sin x from x=0 to x = , with 4 || E. 10.625 D. 2.052 E. 2.104 1. ff(x)dx 2. ff(x) dx 3. ff(x) dx 4. [ f(x) dx