(1 + sec 20° + cot 70°)(1 - cosec 20° + tan70°) is equal to: – McqOptions

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1.	(1 + sec 20° + cot 70°)(1 - cosec 20° + tan70°) is equal to:
A.	0
B.	1
C.	2
D.	3
Answer» D. 3

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