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If two points `P & Q` on the hyperbola ,`x^2/a^2-y^2/b^2=1` whose centre is C be such that CP is perpendicularal to `CQ and a lt b`1 ,then prove that `1/(CP^2)+1/(CQ^2)=1/a^2-1/b^2`. |
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Answer» Correct Answer - 4 `[4]` |
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