Grade 12th passDifferential CalculusIf 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 sadananda 9 Years agoGrade 12th pass
Nishant Vora9 Years agoSolve the line and curve, you will get a quadratic equation for thatquadratic equation D=0This will be the approach for solving this type of problemThanks