Question: Find ddt[t2r(t)+s(t)] where r(t)=(2t12t+1)i and s(t)=ln(14t2)j. Write your answer using standard unit vector notation.

Find ddt[t2r(t)+s(t)] where r(t)=(2t12t+1)i and s(t)=ln(14t2)j. Write your answer using standard unit vector notation.

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