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Grade 12th passDifferential Calculus

If the st line xcosz+ysinz=p touches the curve x^2/a^2+y^2/b^2=1 prove that a^2cos^2z+b^2sin^2z=p^2

Profile image of sadananda
9 Years agoGrade 12th pass
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1 Answer

Profile image of Nishant Vora
9 Years ago
Solve the line and curve, you will get a quadratic equation for thatquadratic equation D=0

This will be the approach for solving this type of problem

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