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Let the occentricity of the hyperbola (x...

Let the occentricity of the hyperbola `(x^(2))/(a^(2))-(y^(2))/(b^(2))=1` be reciprocal to that of the ellipse `x^(2) + 9y^(2)= 9`, then the ratio `a^(2) : b^(2)` equals

A

`8: 1`

B

`1: 8`

C

`9: 1`

D

`1: 9`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2018-MULTIPLE CHOICE QUESTIONS
  1. If one of the diameters f the circle, given by the equation x^(2)+y^(2...

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  2. A chord AB is drawn from the point A(0, 3) on the circle x^(2)+4x+(y-3...

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  3. Let the occentricity of the hyperbola (x^(2))/(a^(2))-(y^(2))/(b^(2))=...

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  4. Let A. B be two distinct points on the parabola y^(2)=4x. If the axis ...

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  5. Let P(a t^(2), 2 a t), Q, R (a r^(2).2 ar) be three points on a parabo...

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  6. Let P be a point on the ellipse (x^(2))/(9) + (y^(2))/(4)=1 and the li...

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  7. A point P lies on a line through Q(1, -2, 3) and is parallel to the li...

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  8. The foot of the perpendicular drawn from the point (1, 8,4) on the lin...

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  9. The approximate value of sin 31^(@) is

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  10. Let f(1)(x)= e^(x), f(2)(x)= e^(f(1)(x)),……f(n+1)(x)= e^(f(n)(x)) for ...

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  11. The domain of definition of f(x)= sqrt((1-|x|)/(2-|x|)) is Here (a, ...

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  12. Let f : [a, b] rarr R be differentiable on [a, b] & k in R. Let f(a)= ...

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  13. Let f(x)= 3x^(10)- 7x^(8) + 5x^(6)- 21x^(3) + 3x^(2)-7. Then underset(...

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  14. Let f: [a, b] rarr R be such that f is differentiable in (a,b). f is c...

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  15. Let f: R rarr R be a twice continuously differentiable function such t...

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  16. If int e^(sin x) [(x cos^(3)x - sin x)/(cos^(2)x)] dx= e^(sin x).f(x) ...

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  17. If int f(x) sin x cos x dx= (1)/(2(b^(2)-a^(2))) log f(x) + c, where c...

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  18. If M= underset(0)overset(pi//2)int (cos x)/(x +2) dx, N= underset(0)ov...

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  19. The value of the integral I= underset(1/2014)overset(2014)int (tan^(-1...

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  20. Let I= underset(pi /4)overset(pi /3)int (sin x)/(x) dx. Then

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