If \( F(x)=\int_{1}^{x} e^{t^{2} / 2}\left(1-t^{2}\right) d t \), t... VIDEO
If \( F(x)=\int_{1}^{x} e^{t^{2} / 2}\left(1-t^{2}\right) d t \), then \( \frac{d}{d x} F(x) \) at \( x=1 \) is
(A) 0
(B) 1
(C) 2
(D) \( -1 \)
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