1. Alice is about to sled down a snow-covered hill as shown below. The hill is so slippery that there's no friction between her sled and the snow. What will Alice's acceleration down the hill be? (Hint: Anything close to the earth's surface that falls freely will acceleration straight downward at a constant gravitational acceleration, g. Find the component of this gravitational acceleration that is parallel with the surface of the hill. Be sure to draw a large diagram that shows the vector g and how you're finding the parallel component.)

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Q: Example 8.25. Evaluate x + 2x + 1 Jo 1+ (x + 1)². dx by Gaussian 3-point formula.

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