MCQOPTIONS
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| 1. |
If the normals at \[P(\theta )\]and \[Q(\pi /2+\theta )\]to the ellipse \[\frac{{{x}^{2}}}{{{a}^{2}}}+\frac{{{y}^{2}}}{{{b}^{2}}}=1\]Meet the major axis at G and g, respectively. Then \[P{{G}^{2}}+Q{{g}^{2}}=\] |
| A. | \[{{b}^{2}}(1-{{e}^{2}})(2-{{e}^{2}})\] |
| B. | \[{{a}^{2}}({{e}^{4}}-{{e}^{2}}+2)\] |
| C. | \[{{a}^{2}}(1+{{e}^{2}})(2+{{e}^{2}})\] |
| D. | \[{{b}^{2}}(1+{{e}^{2}})(2+{{e}^{2}})\] |
| Answer» C. \[{{a}^{2}}(1+{{e}^{2}})(2+{{e}^{2}})\] | |