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If iz^3+z^2-z+i=0 then the value of abs(...

If `iz^3+z^2-z+i=0` then the value of `abs(z)` is

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UNITED BOOK HOUSE-Nava Nalanda School, Question Paper -Exercise
  1. Find out derivative of (3x^2 + 5x + 78)

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  2. Five cards are drawn successively with replacement from a well-shuffle...

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  3. If iz^3+z^2-z+i=0 then the value of abs(z) is

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  4. What are the merits of arithmetic mean?

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  5. Write notes on : Relative dispersion and its measures.

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  6. If Y = a + bx, a, b be two real constants, then prove that Range (y) =...

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  7. Prove that logn(n + 1) > log(n + 1) (n + 2), for n > 1.

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  8. Show that for any set of n real values x1, x2,…….xn. x1^2 + x2^2 + …....

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  9. State Remainder theorem.

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  10. If a, b, c are all positive, prove that 6abc le bc(b + c) + ca(c + a) ...

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  11. Find the degree two polynomial function f(x) for which it is known tha...

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  12. If a variable assumes n values a, ar,………ar^(n - 1) (r < 1) with equal ...

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  13. Write a short note on histogram of a frequency distribution.

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  14. Write down the merits and demerits of mass questionnaire method.

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  15. if sin^4x+sin^2x=1,then prove that cot^4x+cot^2x=1.

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  16. Two groups of 15 and 22 values have variances 9 and 16 respectively. I...

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  17. Write a general formula expressing central moments in terms of raw mom...

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  18. If s and R are respectively the standard deviation and range of set of...

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  19. If barx1 and barx2 are the A.M. of two sets with n1 and n1 observation...

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  20. Derive the formula of median from ogive for a frequency distribution.

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