If cos 37˚ = a/b then what is the value of cosec37˚ - cos53˚ = ? – McqOptions

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1.	If cos 37˚ = a/b then what is the value of cosec37˚ - cos53˚ = ?
A.	(b2 - a2)/ab
B.	a2/(b√(a2 + b2))
C.	b√(a2 + b2)/a
D.	a2/b√(b2 - a2)
Answer» E.

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