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If alpha and beta are roots of ax^(2)+bx...

If `alpha` and `beta` are roots of `ax^(2)+bx+c=0` then the equation whose roots are `alpha^(2)` and `beta^(2)` is

A

`a^(2)x^(2)-(b^(2)-2ac)x+c^(2)=0`

B

`a^(2)x^(2)+(b^(2)-ac)x+c^(2)=0`

C

`a^(2)x^(2)+(b^(2)+ac)x+c^(2)=0`

D

`a^(2)x^(2)+(b^(2)+2ac)x+c^(2)=0`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2016-MULTIPLE CHOICE QUESTIONS
  1. If the matric A=((2,0,0),(0,2,0),(2,0,2)), then A^(n)=((a,0,0),(0,a,0)...

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  2. The sum of n terms of the following series, 1^(3)+3^(3)+5^(3)+7^(3)+…....

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  3. If alpha and beta are roots of ax^(2)+bx+c=0 then the equation whose r...

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  4. If omega is an imaginary cube root of unity, then the value of (2-omeg...

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  5. If ""^(n)C(r-1)=36, ""^(n)C(r )=84 and ""^(n)C(r+1)=126 then the value...

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  6. In a group 14 males and 6 females, 8 and 3 of the males and females re...

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  7. The equation x^(3)-yx^(2)+x-y=0 represents

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  8. The locus of the midpoints of chords of the circle x^(2)+y^(2)=1 which...

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  9. The locus of the midpoints of all chords of the parabola y^(2)=4ax thr...

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  10. If [x] denotes the greatest integer less than or equal to x, then the ...

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  11. The number of points at which the function f(x)=max {a-x, a+x, b}, -oo...

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  12. If the parabola x^(2)=ay makes an intercept of length sqrt(40) unit on...

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  13. If f(x) is a function such that f'(x)=(x-1)^(2)(4-x), then

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  14. On the ellipse 4x^(2)+9y^(2)=1, the points at which the tangents are p...

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  15. If varphi(t)={{:("1, for 0" le t lt 1),("0 otherwise"):} then int...

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  16. If the equation x^(2)+y^(2)-10x+21=0 has real roots x=alpha and y=beta...

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  17. If z = sin theta -i cos theta then for any integer n,

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  18. Let f : X to X be such that f(f(x))=x for all x in X and X sube R, the...

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  19. If A, B are two events such that P(A uu B)ge (3)/(4) and (1)/(8)le P(A...

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  20. If the first and the (2n+1)^(th) terms of an AP, GP and HP are equal a...

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