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Grade: 11

                        

find the equation of tangents from the point 2,2 to the ellipse 4x2+9y2=36

11 years ago

Answers : (1)

bharat bajaj
IIT Delhi
askIITians Faculty
122 Points
							
In General, if the ellipse is :
x2/a2+y2/b2= 1
The equation of tangent is :
(xx1)/a2+(yy1)/b2= 1.
Hence, for this ellipse, the equation of tangent is :
8x + 18y = 36
or 4x + 9y = 18
Thanks & Regards
Bharat Bajaj
askiitian faculty
IIT Delhi
6 years ago
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