Question 23
Multiple Choice
Find the derivative dsdr r(t) =⟨t,t3,t⟩,t=(s2+1) 3
A) r′(s) =⟨1,3(s2+1) 6,21(s2+1) −23⟩
B) r′(s) =⟨1,3t2,21t−21⟩
C) r′(s) =⟨1,3(s2+1) 6,21(s2+1) −23>6s(s2+1) 2
D) r′(s) =⟨t,t3,t⟩6s(s2+1)
Correct Answer:

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