MCQOPTIONS
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MCQOPTIONS
| 1. |
The length of common chord of the circles \[{{(x-a)}^{2}}+{{y}^{2}}={{a}^{2}}\]and \[{{x}^{2}}+{{(y-b)}^{2}}={{b}^{2}}\]is [MP PET 1989] |
| A. | \[2\sqrt{{{a}^{2}}+{{b}^{2}}}\] |
| B. | \[\frac{ab}{\sqrt{{{a}^{2}}+{{b}^{2}}}}\] |
| C. | \[\frac{2ab}{\sqrt{{{a}^{2}}+{{b}^{2}}}}\] |
| D. | None of these |
| Answer» C. \[\frac{2ab}{\sqrt{{{a}^{2}}+{{b}^{2}}}}\] | |