Barrons AP Calculus - David Bock

dmanu (dmanu) 2022-08-30 04:58:57 UTC #1

(B) The particle is at rest when v = 0; v = 2t(2t^2 − 9t + 12) = 0 only if t = 0. Note that the
discriminant of the quadratic factor (b^2 − 4ac) is negative.

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