If cos 21Â° = x/y, then cosec 21Â° -Â cos 69Â° is equal to – McqOptions

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1.	If cos 21Â° = x/y, then cosec 21Â° -Â cos 69Â° is equal to
A.	x2yy2-x2
B.	y2xy2-x2
C.	y2xx2-y2
D.	x2yx2-y2
Answer» B. y2xy2-x2

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