EAMCET Engineering 2009 Solved Paper

Section: Mathematics

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Question : 103 of 160

Marks: +1, -0

‌

cos‌x

cos(x−2y)

=λ⇒tan(x−y)‌tan‌y is equal to

‌
1+λ
1−λ
‌
1−λ
1+λ
‌
λ
1+λ
‌
λ
1−λ

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