EAMCET Engineering 2005 Solved Paper

Section: Mathematics

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Question : 139 of 160

Marks: +1, -0

Which of the following equations gives a circle?

r=2sin‌θ
r2‌cos‌2‌θ=1
r(4‌cos‌θ+5sin‌θ)=3
5=r(1+√2‌cos‌θ)

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