MATH 136 CALCULUS 1 FALL 2011 MATH 136 CALCULUS 1 FALL 2011 MORE TEST FOUR REVIEW MORE TEST FOUR REVIEW Here’re some more problems. Solutions to these are on my website. 1. Using n=6, approximate 4 2 ( x 16)dx with left endpoints, 2 Here’re some more problems. Solutions to these are on my website. 1. Using n=6, approximate 4 2 ( x 2 16)dx with left endpoints, carefully drawing the necessary rectangles on a graph of the function being integrated. carefully drawing the necessary rectangles on a graph of the function being integrated. Without drawing the new rectangles, calculate another approximation using right endpoints. Without drawing the new rectangles, calculate another approximation using right endpoints. Which method do you think gives the better approximation for this integral? Why? Which method do you think gives the better approximation for this integral? Why? 2. During the recent Team Milkshake Drinking Championships, sponsored by JackInTheBox, Team USA drank at a rate of r (t ) ounces per minute. Explain what 85 0 r (t ) dt would mean, including what units it would have. 2 1 2 e ( 85 0 r (t ) dt would mean, including 3. Integrate. 6 2 x)dx x4 x2 x dx x3 c) e) sin( x)e g) x (ln( x 1 ounces per minute. Explain what what units it would have. 3. Integrate. a) 2. During the recent Team Milkshake Drinking Championships, sponsored by JackInTheBox, Team USA drank at a rate of r (t ) cos( x) b) d) dx 5 1 (| x 2 | 1)dx 9 x 2 ln( x 3 8) x3 8 xdx f) 2x 2 3 dx dx 3 24)) 4 a) 2 1 2 e ( 6 2 x)dx x4 x2 x dx x3 c) e) sin( x)e g) x (ln( x 1 cos( x) b) d) dx 5 1 (| x 2 | 1)dx 9 x 2 ln( x 3 8) x3 8 xdx f) 2x 2 3 dx dx 3 24)) 4 4. If f ' ' ( x) x cos( x) and f ' (0) 2 and f (0) 4 , find f (x ) . 4. If f ' ' ( x) x cos( x) and f ' (0) 2 and f (0) 4 , find f (x ) . 5. The acceleration of a trachybrycheodon (an extinct prehistoric 2 ancestor of the jellyfish) is given by a(t ) 12(t t ) meters per second. Assuming its initial velocity and position are zero, find its velocity at the moment it returns to its starting place. 5. The acceleration of a trachybrycheodon (an extinct prehistoric 2 ancestor of the jellyfish) is given by a(t ) 12(t t ) meters per second. Assuming its initial velocity and position are zero, find its velocity at the moment it returns to its starting place.