UPSC NDA Math Model Paper 3

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Question : 49 of 120

Marks: +1, -0

If

sin(x+y)

sin(x−y)

=

a+b

a−b

then what is

tan‌x

tan‌y

equal to?

a
b
b
a
a+b
a−b
a−b
a+b

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