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Four digit number are formed by using th...

Four digit number are formed by using the digits 1,2,3,4 and 5 wihout repeating any digit.Find the probability that a number chosen at random is an odd number.

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UNITED BOOK HOUSE-NAVA NALANDA-EXERCISE
  1. Find the domain of definition of the function f(x)=1/(ln(1-x))+sqrt(x+...

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  2. Prove that (AcupB)^c=A^c capB^c[without venn-diagram]

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  3. Four digit number are formed by using the digits 1,2,3,4 and 5 wihout ...

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  4. Find the mean deviation about the median for the following data:

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  5. For any three sets A, B, C, Prove that A cap(BcupC)=(AcapB)cup (A cap ...

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  6. A+B+C=pi,prove that sin^2(A/2)+sin^2(B/2)+sin^2(C/2)=1-2sin(A/2)sin(B/...

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  7. Solve :tanx+tan(x+pi/3)+tan(x+(2pi)/3)=3

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  8. Using the principle of mathematical induction prove that 3^(2n+1)+2^(n...

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  9. If alpha and beta are different complex numbers with |beta|=1, then fi...

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  10. A question paper contains 12 questions divided into three parts.Parts...

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  11. Prove that the inequations (2x+1)/(7x-1)>5and (x+7)/(x-8)>2have no sol...

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  12. Exhibit graphically the solution region of the following system of 'in...

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  13. Prove that the product of the lengths of the perpendiculars drawn from...

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  14. Find the equation of a circle which touches both the axes and the line...

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  15. The focus of a parabola is (1,5)and its directrix is x+y+2=0.Find the...

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  16. 3(1-x) lt 2(x+4)

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  17. Prove that every function can be expressed as the sum of an -even and ...

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  18. A,B,C are three finite sets such that n(A)=17,n(B)=13,n(C)=15,n(AcapB)...

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  19. Draw the graph of f(x)=|x-1|+|x-2|.

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  20. Whats is the probability of arrangement of the letters of the word SOC...

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