The equation of tangent to the ellipse x2+4y2=25 at the point whose or – McqOptions

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1.	The equation of tangent to the ellipse x2+4y2=25 at the point whose ordinate is 2, is
A.	x+2y=5 or 2x-y=5
B.	3x+8y=25 or 8y-3x=25
C.	3x+2y=15 or 3y-2x=15
D.	x+y=1 or 2x-y=5
Answer» C. 3x+2y=15 or 3y-2x=15

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