The value of \[\cos ({{\tan }^{-1}}(\tan 2))\]is [AMU 2002]

1.	The value of \[\cos ({{\tan }^{-1}}(\tan 2))\]is [AMU 2002]
A.	\[\frac{1}{\sqrt{5}}\]
B.	\[-\frac{1}{\sqrt{5}}\]
C.	\[\cos \,2\]
D.	\[-\cos 2\]
Answer» D. \[-\cos 2\]

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The value of \[\cos ({{\tan }^{-1}}(\tan 2))\]is [AMU 2002]

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