\( f(x)=\left|\begin{array}{ccc}e^{x^{2}} & \sec x & \sin x \\ \cos...
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\( f(x)=\left|\begin{array}{ccc}e^{x^{2}} & \sec x & \sin x \\ \cos x & \tan ^{2} x & x \\ 3 & 4 & x+\tan x\end{array}\right| \)
\( \mathrm{P} \)
W. \( \int_{-\pi / 2}^{\pi / 2}\left(x^{2}+1\right)\left(f(x)+f^{\prime \prime}(x)\right) d x \) is
(1) 0
(2) 1
(3) -1
(4) 2
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