Let r(t) = . a. Find the average rate of change of r(t) on the interval [-(pi/4),(pi/4)]. b. Find the equation of the line tangent to the graph of r(t) at the point where t = pi/4

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Q: Let r(t) = . a. Find the average rate of change of r(t) on the interval [-(pi/4),(pi/4)].

A:

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