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Which is null set?...

Which is null set?

A

a){0}

B

b)`{phi}`

C

c)`{x : x in I and 4 lexle5}`

D

d)`{x:x in R and x^2+9=0}`

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UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 11-EXERCISE
  1. Which is null set?

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  2. z is a complex number. The minimum value of |z | + I z - 2| is

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  3. The value of m, statisfy the equation |m - 2|^2 + |m - 2| -6= 0 is

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  4. In an AP, if the mth and (m + n) th terms are n.and 0 resp then nth te...

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  5. x axis divides the line segment containing two endpoints (3, 6) and (2...

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  6. The radius of the circle (p-1)x^2 + y^2 - x - py= 0 is

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  7. The vlaue of lim(xrarr16)(x^(1//4)-16^(1//4))/(x-16)is

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  8. If y=(1+x^2)/(1+x),then dy/dx at x=0 is

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  9. A bag contains 5 red caps and 4 blue caps. The probability that two dr...

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  10. The median of 1st 67 natural number is

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  11. If A={x:-1lexle2},B={x:0lexle4}Find A-B.

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  12. If f:fRrarrR^+defineed as f(x)=x^2,show that f is surjective.

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  13. If cotalphacotbeta=3,show that (cos(alpha-beta))/(cos(alpha+beta))=2

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  14. In /\ABCif1/(a+c)+1/(b+c)=3/(a+b+c),show that angleC=pi/3

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  15. Express(sqrt3-i)/(1-sqrt3i)in modulus amplitude form

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  16. show that ^nCr+^(n-1)C(r-1)+^(n-1)C(r-2)=^(n+1)Cr

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  17. Find the middle term of the expansion of (P^2-1/P)^9

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  18. Show that the sum of 4 + 12 + 20 + 28 + .... up to n the term is a squ...

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  19. If the distance from- origin to- the straight line 3x + 5y + a = 0 is3...

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  20. Find the co-ordinate of the image of (3, 2, -4) on xy plane.

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