AP Calculus BCeasymcq1 pt
A vector-valued function r(t) = ⟨x(t), y(t)⟩ has derivative
A.r′(t) = ⟨x′(t), y′(t)⟩
B.the sum of the components' derivatives
C.a scalar
D.always zero
Explanation
Core Concept
Vector derivatives differentiate componentwise.
Correct Answer
Ar′(t) = ⟨x′(t), y′(t)⟩
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