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Question

The chord of the circle x2+y2=32 makes equal intercepts of length l on the co-ordinate axes then |l|<8.

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Solution

Any chord making equal intercepts on co-ordinate axes is x±y=±l. Since it is a chord hence perpendicular from centre (0,0) must be less than the radius 42.
±l2<42|l|<8.

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