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Using set operation, prove that 3 + 4 = 7.

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UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 10-EXERCISE
  1. A coin is tossed several times.If we get ‘tail’ in 1st three times.the...

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  2. In a room, every body handshake each other. If the number of handshake...

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  3. Using set operation, prove that 3 + 4 = 7.

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  4. Find the domain of defination of the function f(x)=(x+3)/(sqrt(3-2x-x^...

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  5. Calculate the value of sec(-1680^(@)) sin 330^(@).

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  6. In /\ABC, a = 5 cm, b = 7 cm and c = 3 cm. Find its circumradius.

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  7. Find the argument of (-3 - 3i).

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  8. In how many way can give 4 prizes qut of 10 students for which no one ...

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  9. In the expansion of(x^3-1/x^2)^15,find the constant term.

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  10. In an infinite G.P. series sn/soo=1/3,find its common ratio, [simbols ...

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  11. Find the ratio in- which the straight line 3x + 4y = 21 divides the li...

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  12. The cor-ordinate of three consecutive verties of a parallelogram ar (3...

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  13. Differentitate (1/t^3+2sqrtt)with respect to t.

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  14. Evaluate:lim(xrarr0)(sqrt(1+x+x^2)-1)/x

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  15. If P(A - B) = 1/3,P(A) =1/2 and P(B) =1/3 ,find the probability that ...

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  16. Calculate the variance of 1st h natural numbers.

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  17. For any three sets A, B, C. show thatAxx(B-C)=(AxxB)-(AxxC)

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  18. Show that tan6^@tan42^@tan66^@tan78^@=1

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  19. Solve :2+2cos2x.cos5x=sin^2 2x

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  20. Prove that by mathematical induction,4^n+15n-1is divisible ny 9 when n...

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