UPSC NDA I 2018 Mathematics Solved Paper

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Question : 46 of 120

Marks: +1, -0

If ‌‌

sin(x+y)

sin(x−y)

=‌‌

a+b

a−b

, then what is ‌‌

tanx

tany

equal to ?

[NDA I 2018]

a
b
b
a
a+b
a−a
a−b
a+a

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