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If straight line xcos alpha +ysinalpha =p touches curve x^2/a^2+y^2/b^2 =1 then prove that a^2cos^2 alpha +b^2sin^2alpha=p^2

If straight line xcos alpha +ysinalpha =p touches curve x^2/a^2+y^2/b^2 =1 then prove that a^2cos^2 alpha +b^2sin^2alpha=p^2

Grade:12

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4405 Points
3 years ago
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