SSC CPO SI and ASI 2011 Paper

Question : 143 of 200

Marks: +1, -0

The value of tan 4°.tan43°.tan47°.tan86° is

Solution:

(3)

\tan 4^{\°} \ \tan 43^{\°} \ \tan 47^{\°} \ \tan 86^{\°}

=\tan 4^{\°} \×\tan 43^{\°} \× \cot 43^{\°} \× \cot 4^{\°}

=1

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