\[\int_{{}}^{{}}{x\sin x{{\sec }^{3}}x\,dx=}\]

1.	\[\int_{{}}^{{}}{x\sin x{{\sec }^{3}}x\,dx=}\]
A.	\[\frac{1}{2}[{{\sec }^{2}}x-\tan x]+c\]
B.	\[\frac{1}{2}[x{{\sec }^{2}}x-\tan x]+c\]
C.	\[\frac{1}{2}[x{{\sec }^{2}}x+\tan x]+c\]
D.	\[\frac{1}{2}[{{\sec }^{2}}x+\tan x]+c\]
Answer» C. \[\frac{1}{2}[x{{\sec }^{2}}x+\tan x]+c\]

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\[\int_{{}}^{{}}{x\sin x{{\sec }^{3}}x\,dx=}\]

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