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OpenStudy (anonymous):
x(t) = −4t2 + 20t + 64 and r=-8t^2+40t+128. what is (r dot x)(t)? times? and how do I do that?
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OpenStudy (anonymous):
what do u actually want to calculate? rox (composition of r and x) or r.x (product of r and x)
OpenStudy (anonymous):
it was a dot in between r and x? im guessing composition?
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