Let r(t)=〈t2,1−t,4t〉. Calculate the derivative of r(t)⋅a(t) at t=2 Assuming that a(2)=〈7,−3,7〉 and a′(2)=〈3,2,4〉

ddtr(t)⋅a(t)|t=2=

101

Step-by-step explanation:

We are given that

r(t)=

We have to find the derivative of r(t).a(t) at t=2

a(2)=<7,-3,7> and a'(2)=<3,2,4>

We know that

Using the formula

Substitute t=2

idk the answer but just put a

step-by-step explanation:

a framing bias

step-by-step explanation:

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