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anubhav gupta Grade: 11
        

find the equation of the tangents from the point 2,2  to the ellipse 4x2+9x2=36



7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear anubhav


2 tangents can be drawn from given point


4x2+9y2=36


x2/32 +y2/22 =1


equation of tangent


y=mx± √(9m2 +4)


this line passes through (2,2)


so


2= 2m ± √(9m2 +4)


calculate value of m


and put it in above equation





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Badiuddin



7 years ago
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