UPSC NDA Math Model Paper 4
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Comprehension:(Que No. 78 - 80)
Direction: Let sin (A + B) = 1 and sin (A - B) = 1 / 2, whereA , B ∈ [ 0 ,
] .
Direction: Let sin (A + B) = 1 and sin (A - B) = 1 / 2, where
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Question : 80 of 120
Marks:
+1,
-0
What is the value of A?
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