What is the value of {\tan ^{2}25^{ \circ }}/{cosec^{2}65^{ \circ }} + {\cot ^{2}25^{ \circ }}/{ \sec ^{2}65^{ \circ }} + 2tan20^{ \circ }tan45^{ \circ }tan70^{ \circ }?

SSC CPO 2 July 2017 Shift 2 Paper

Question : 144 of 200

Marks: +1, -0

What is the value of

\;{\tan\;^{2}25^{\;∘\;}}/{cosec^{2}65^{ ∘ }} + \;{\cot\;^{2}25^{\;∘\;}}/{\ sec\;^{2}65^{ ∘ }} + 2tan20^{ ∘ }tan45^{ ∘ }tan70^{ ∘ }?

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