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The length of the major axis of the elli...

The length of the major axis of the ellipse
`2x^(2)+y^(2)-8x-2y+1=0` is

A

2

B

`2sqrt(2)`

C

4

D

`4sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 4-Mathematics
  1. If angle C of the triangle ABC is right angle and the coordinates of A...

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  2. The number of common tangents to the circles x^(2)+y^(2)-x=0 and x^(2)...

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  3. The length of the major axis of the ellipse 2x^(2)+y^(2)-8x-2y+1=0 i...

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  4. The focus of the parabola 2y=x^(2)+2x+2 is

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  5. The locus of the point (2-sectheta,1+2tantheta)theta being the paramet...

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  6. The number of normals that can be drawn from an external point to the...

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  7. If f(x)=(x-2)/(x+2),x!= -2 then f^(-1)(x), is equal to

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  8. f(xy)=f(x)+f(y) is true for all

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  9. lim(xto0)(e^(x^(2))-cosx)/(x^(2)), is equal to

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  10. If lim(xto0)phi(x)=a^(2),a!=0, then lim(xto0)phi(x//a) is equal to

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  11. To make f(x)=(x+1)^(cotx) continuous at x=0,f(0) must defined as

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  12. If y=log(10)x+log(x)10+log(x)x+log(10)10, then ((dy)/(dx))(x=10) is eq...

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  13. The minium distance from the point (4,2) to the curve y^(2)=8x, is equ...

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  14. If y=x^(x^(x^(x^(x^(oo))))), then x(dy)/(dx) is equal to

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  15. The derivative of sec^(-1)[(1)/(2x^(2)-1)] with respect to sqrt(1-x^(2...

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  16. If y=sin(logx), then

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  17. If int(dx)/(sqrt(1-x^(2)))=sin^(-1)x-=f(1)(x) (say) and int(dx)/(sqrt(...

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  18. inte^(e^(e^(*^(x))))*e^(e^(x))*e^(x) dx equal to

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  19. int(0)^(pi//2)|sinx-cosx|dx is equal to

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  20. int(0)^(a+b)(f(x-a))/(f(x-a)+f(b-x))dx, is equal to

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