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If n is a such real number that n>3 .the...

If n is a such real number that n>3 .then `n^2>9` prove it by the method of contradiction.

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UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 6-EXERCISE
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  9. Prove that,lim(nrarrprop)(1^3+2^3+3^3+....+n^3)/n^4=1/4

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  10. If y=(xsinx+cosx)/(xcosx-sinx),then show that dy/dx=x^2/(xcosx-sinx)^2

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  11. If n is a such real number that n>3 .then n^2>9 prove it by the method...

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  12. The mean and SD of 20 items were found to be 12.5 and 2.1 resp.After ...

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  13. Out of 15 articles in a box, three of. them are defective. If 5 articl...

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  14. In /\ABC,if (a^2+b^2)sin(A-B)=(a^2-b^2)sin (A+B),show that the triangl...

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