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sum(n=1)^7(n(n+1)(2n+1))/4 is equal to...

`sum_(n=1)^7(n(n+1)(2n+1))/4` is equal to

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MCGROW HILL PUBLICATION-JEE (Main) 2020 QUESTION PAPER (8TH JAN-AFTERNOON)-Multiple Choice Questions
  1. If alpha and beta be the coefficients of x^4 and x^2 respectively in t...

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  2. If a hyperbola passes through the point P(10,16) and it has vertices a...

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  3. lim(x rarr 0)(int0^x tsin(10t)dt)/x is equal to

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  4. If y = mx + c is a tangent to the circle (x – 3)^2 + y^2 = 1 and also ...

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  5. Let alpha=(-1+isqrt(3))/2 and a=(1+alpha)sum(k=0)^(100) alpha^(2k),b=s...

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  6. The mirror image of the point (1,2,3) in plane is (-7/3,-4/3, -1/3) . ...

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  7. The length of the perpendicular from the origin,on the normal to the c...

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  8. Which of the following statements is a tautology?

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  9. Let I=int1^2 (dx)/sqrt(2x^3-9x^2+12x+4) then

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  10. If A=((2,2),(9,4)) and I=((1,0),(0,1)), then 10A^(-1) is equal to :

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  11. The area (in sq. units) of the region {(x,y) in R^2: x^2 le y le 3-2x}...

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  12. Let the set of all function f: [0,1]toR, which are containous on [0,1]...

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  13. The differential equation of the family of curves, x^(2)=4b(y+b),b in ...

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  14. The system of linear equations lambdax+2y+2z=5 2lambda x+3y+5z=8 ...

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  15. It the 10^(th) term of an A. P. is 1/20 and its 20^(th) term is 1/10, ...

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  16. Let a line y = mx ( m gt 0) intersect the parabola, y^2 = 4x at a po...

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  17. Let f(x) be a polynomial of degree 3 such that f(-1) = 10, f(1) = -6, ...

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  18. If sqrt(sin alpha)/(sqrt(1+cos2 alpha))=1/7 and sqrt((1-cos2beta)/2)=1...

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  19. The number of 4 letter words (with or without meaning) that can be for...

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  20. sum(n=1)^7(n(n+1)(2n+1))/4 is equal to

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