The value of { (cos9^{ \circ } + sin81^{ \circ }) (sec9^{ \circ } + cosec81^{ \circ }) }/{ (2sin^{2}63^{ \circ } + 1 + 2sin^{2}27^{0}) } is:

SSC CGL 4 Mar 2020 Shift 3 Paper

Question : 54 of 100

Marks: +1, -0

The value of

\;{\;(cos9^{\;∘\;}\;+\;sin81^{\;∘\;})\;\;(sec9^{\;∘\;}\;+\;cosec81^{\;∘\;})\;}/{\;(2sin^{2}63^{ ∘ } + 1 + 2sin^{2}27^{0}) }

is:

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