MCQOPTIONS
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MCQOPTIONS
| 1. |
Polar of origin (0, 0) with respect to the circle \[{{x}^{2}}+{{y}^{2}}+2\lambda x+2\mu y+c=0\] touches the circle \[{{x}^{2}}+{{y}^{2}}={{r}^{2}}\], if[RPET 1992] |
| A. | \[c=r({{\lambda }^{2}}+{{\mu }^{2}})\] |
| B. | \[r=c\,({{\lambda }^{2}}+{{\mu }^{2}})\] |
| C. | \[{{c}^{2}}={{r}^{2}}({{\lambda }^{2}}+{{\mu }^{2}})\] |
| D. | \[{{r}^{2}}={{c}^{2}}({{\lambda }^{2}}+{{\mu }^{2}})\] |
| Answer» D. \[{{r}^{2}}={{c}^{2}}({{\lambda }^{2}}+{{\mu }^{2}})\] | |