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Question

The length of intercept, the circle x2+y2+10xāˆ’6y+9=0 makes on the x-axis is

A
2
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B
4
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C
6
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D
8
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Solution

The correct option is D 8
Comparing the given equation with x2+y2+2gx+2fy+c=0, we get g = 5

Length of intercept on x-axis = 2g2c
=2(5)29=8.


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