cos45/sec30+cosec30
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Cos45/(sec30 + cosec30)
cos45(1/cos30 + 1/sin30 )
we know that cos 45 = 1/sqrt2
sin 30= 1/2
cos30 = sqrt3/2
1/sqrt2 ( 2/sqrt3 + 2)
sqrt2/sqrt3 + sqrt2
(sqrt2 + sqrt6)/sqrt3
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