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. \[{{a}^{2}}(1+{{e}^{2}})(2+{{e}^{2}})\]


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