If + = 90 , then the value of (1 sin ) (1 cos ) (1 + cot – McqOptions

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1.	If + = 90 , then the value of (1 sin ) (1 cos ) (1 + cot ) (1 + tan ) is
A.	1
B.	- 1
C.	0
D.	2
Answer» B. - 1

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