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The sum of first 'n' odd natural number ...

The sum of first 'n' odd natural number is………..

A

n

B

`n^2`

C

`n(n+1)`

D

`(n(n+1))/2`

Text Solution

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The correct Answer is:
B
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VGS PUBLICATION-BRILLIANT-2019 MARCH PUBLIC EXAMINATION PAPER -QUESTIONS
  1. IF n(A)=8,n(B)=6, n(AcapB)=3, then n(AcupB)=………

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  2. The discriminant of 6x^2-5x+1=0 is ………

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  3. Sum of the zeroes of the polynomial x^2+5x+6 is……

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  4. Which of the following is not irrational?

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  5. One root of the equation x-3/x=2 is……….

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  6. IF 4,a,9 are in G.P., then a=………..

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  7. IF total surface area of a cube is 96cm^2, then its volume is…………

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  8. log(10)0.001=………..

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  9. Match the following : If alpha,beta,gamma are zeroes of a cubic poly...

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  10. The next term is A.P. sqrt3,sqrt12,sqrt27 is……..

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  11. The shaded region in the given figure below:

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  12. 5x-3 represents …………polynomial.

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  13. The common difference of A.P. log2 2,log2 4,log2 8 is………

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  14. The sum of first 'n' odd natural number is………..

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  15. The quadratic polynomial, whose zeroes are sqrt2 and -sqrt2 is………..

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  16. The number of zeroes of the polynomial in the graph is…………

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  17. The line 2x-3y=8 intersects X-axis at………

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  18. The volume of cone , whose radius is 3 cm and height is 8cm, is ……….....

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  19. IF 6x+2y-9=0 and kx+y-7=0 has no solution, then k=……..

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  20. IF the equation x^2+5x+K=0 has no real and distinct roots, then………

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