AP EAPCET 25-Aug-2021 Shift 2 Paper

Section: Mathematics

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Question : 55 of 160

Marks: +1, -0

The angle between circles x2+y2+2x+4y+1=0 and x2+y2−2x+6y−3=0 is:

Cos−1(
3
√13
)
Cos−1(
3
√31
)
Cos−1(√
3
13
)
2Cos−1(
3
√13
)

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