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Find the foci of the ellipse 25(x+1)^2+9...

Find the foci of the ellipse `25(x+1)^2+9(y+2)^2=225.`

A

`(-1,2) and (-1,-6)`

B

`(-2,1) and (-2,6)`

C

`(-1,-2) and (-2,-1)`

D

`(-1,-2) and (-1,-6)`

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The correct Answer is:
A
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OBJECTIVE RD SHARMA ENGLISH-ELLIPSE-Exercise
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  2. Find the angle between the pair of tangents from the point (1,2) to...

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  3. Find the foci of the ellipse 25(x+1)^2+9(y+2)^2=225.

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  4. if the coordinates of the centre , a foucs and adjacent vertex ...

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  5. If x/a+y/b=sqrt(2) touches the ellipse (x^2)/(a^2)+(y^2)/(b^2)=1 , the...

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  6. A tangent having slope of -4/3 to the ellipse (x^2)/(18)+(y^2)/(32)=...

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  7. The equation of the chord of the ellipse 2x^2+ 5y^2 =20 which is bisec...

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  8. AB is a diameter of x^2 + 9y^2=25. The eccentric angle of A is pi/6 ...

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  9. if one end of a diameter of the ellipse 4x^(2)+y^(2)=16 is (sqrt...

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  10. the equation of a diameter conjugate to a diameter y=(b)/(a)x of ...

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  11. If A,A' are the vertices S,S' are the foci and Z,Z' are the fe...

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  12. The eccentricity of an ellipse whose pair of a conjugate diameter are ...

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  13. The locus of the point of intersection of tangents to the ellipse...

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  14. The number of maximum normals that can be drawn from any point to an e...

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  15. The sum of the squares of the perpendiculars on any tangent to the ell...

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  16. If the polar with respect to y^2 = 4ax touches the ellipse x^2/alpha^2...

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  17. If p and q are the segments of a focal chord of an ellipse b^2x^2+a^2y...

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  18. If x/a+y/b=sqrt(2) touches the ellipse (x^2)/(a^2)+(y^2)/(b^2)=1 , the...

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  19. Let P be a point on the ellipse (x^2)/(a^2)+(y^2)/(b^2)=1 of ecc...

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  20. if P(theta) and Q(pi/2 +theta) are two points on the ellipse x^2/a^2+...

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