Question: Graph y = -2x sin (x 2 ) for -2 x 3. Then, on the same screen, graph for h = 1.0, 0.7,

Graph y = -2x sin (x2) for -2 ≤ x ≤ 3. Then, on the same screen, graphy = cos ((x + h)) - cos (x) h


for h = 1.0, 0.7, and 0.3. Experiment with other values of h. What do you see happening as h → 0? Explain this behavior.

y = cos ((x + h)) - cos (x) h

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