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y=f(x)=x^(2)-x+10 is...

`y=f(x)=x^(2)-x+10` is

A

an increasing function in `((1)/(2), alpha)`

B

an increasing function in `[-(1)/(3), (2)/(3)]`

C

an increasing function in `[(2)/(3), alpha]`

D

a decreasing function in `[(1)/(3), alpha]`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2007-MULTIPLE CHOICE QUESTIONS
  1. If in an infinite G.P. series, the first term is 'a' and the sum is 3,...

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  2. If n is an integer greater than 1, then the value of a-""^(n)c(1)(a-1)...

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  3. y=f(x)=x^(2)-x+10 is

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  4. If f(x)=mu x-sin x is strictly increasing then

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  5. If A and B are two square matrices of the same order such that AB = A,...

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  6. If x and a are real, then the value of a for which the expression x^(2...

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  7. The differential equation of the family of parabolas whose vertex is a...

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  8. The solution of (dy)/(dx)=xy+2y subject to the condition y = 1 at x = ...

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  9. The sum of the first 26 odd positive integers is

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  10. If Z(1) and Z(2) are two non-zero complex numbers such that |Z(1)+Z(2)...

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  11. The solution of (d^(2)y)/(dx^(2))-4(dy)/(dx)=0 is

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  12. If the coefficients of 2nd, 3rd and 4th terms of (1+x)^(2n) are in A.P...

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  13. A particle is projected vertically upwards with a velocity of 4900 cm/...

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  14. The value of sin (-300^(@)) is

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  15. The solution of the differential equation (dy)/(dx)=e^(x-y)+1 is

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  16. The area of the region bounded by the curves y=x^(2) and x=y^(2) is

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  17. If f(x)=|x|+|1-x|, -2le x le 3, then the set of points of discontinuit...

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  18. Two cars start moving from the junction point of two perpendicular roa...

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  19. The value of lim(x to 0)(1-cos x)/(x^(2))

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  20. If A=[(2,3),(5,-2)] then A^(-1) is

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