(1 – tan A)2+ (1 + tan A)2+ (1 – cot A)2+ (1 + cot A)2is equal to

1.	(1 – tan A)2+ (1 + tan A)2+ (1 – cot A)2+ (1 + cot A)2is equal to
A.	sin2A.cos2A
B.	sec2A.cosec2A
C.	2sec2A.cosec2A
D.	None of these
Answer» D. None of these

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