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A coin is tossed twice.What is the proba...

A coin is tossed twice.What is the probability that atleast one tail occurs?

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OSWAAL PUBLICATION-SAMPLE PAPER 8-EXERCISE
  1. Draw appropriate Venn diagram for each of the following : (A ∪ B)′

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  2. Draw appropriate Venn diagram for each of the following : (A ∩ B)′

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  3. A coin is tossed twice.What is the probability that atleast one tail o...

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  4. Write the following relations as the sets of ordered pairs:(i)A relati...

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  5. Write the following relations as the sets of ordered pairs:(ii)A realt...

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  6. Write the contrapositive and converse of the following statements. Y...

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  8. Coefficient of variation of distribution are 70 and the standard devia...

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  9. Represent the complex number (2+6sqrt3i)/(5+sqrt3i)in polar form.

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  10. Evaluate :underset(x rarr 2)lim(x^3-3x^2+4)/(x^4-8x^2+16).

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  11. Find all pairs of consecutive odd positive integers,both of which are ...

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  12. Find the co-ordinate of a point equidistant from the four points O(0,0...

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  14. Prove that the points (2, -5) & (-2, 4) lie on the same side of the li...

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  18. Let R be the relation over the set N xx N and is defined by (a,b)R(c,d...

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  19. Let R be the relation over the set N xx N and is defined by (a,b)R(c,d...

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  20. Prove that :(cosx-cosy)^2+(sinx-siny)^2=4sin^2((x-y)/2).

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