AP Calculus BChardmcq1 pt
For x = t³, y = 3t², d²y/dx² equals
A.-2/(3t⁴)
B.-2/t²
C.2/t²
D.6t
Explanation
Core Concept
d/dt(2/t) = −2/t²; divide by dx/dt = 3t² gives −2/(3t⁴).
Correct Answer
A-2/(3t⁴)
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