The value of sin2 20° + sin2 70° - tan2 45° + sec 60° is equal – McqOptions

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1.	The value of sin2 20° + sin2 70° - tan2 45° + sec 60° is equal to∶
A.	1
B.	3
C.	2
D.	2.5
Answer» D. 2.5

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