Use the properties of the derivative to find the following. $\qquad r(t) = 9i + (t - 1)j$, $w(t) = t i + t^2 j + \frac{2}{3}t^3 k$ (a) $r'(t)$ $9i + j$ (b) $\frac{d}{dt}[w(t) - 2r(t)]$ $-17t + (2t - 2)j + 2t^2 k$ (c) $\frac{d}{dt}[(3t)r(t)]$ $54t i + (8t - 4)j$
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Step 1: The derivative of r(t) with respect to t is given by: r'(t) = (9i + j) + (i + 2tj) Show more…
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