Question: help with this. i think i forgot how to do derivatives... Problem Value: 1 point(s). Problem Score: 0%. Attempts Remaining: 11 attempts. Help Entering Answers

help with this. i think i forgot how to do derivatives...

Problem Value: 1 point(s). Problem Score: 0%. Attempts Remaining: 11 attempts. Help Entering Answers (1 point) Consider the function r(t)=4tsin(t),5t2,5cos(5t). Calculate the following: 1. r(t)= 2. r(2)= 3. r(2)= 4. T(2)= Here T is the unit tangent vector

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