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If .^(n+1)C(r+1):^(n)C(r):^(n-1)C(r-1)=1...

If `.^(n+1)C_(r+1):^(n)C_(r):^(n-1)C_(r-1)=11:6:3`, find the values of n and r.

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JBD PUBLICATION-MODEL PAPER (6)-EXERCISE
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  2. Prove by the principle of mathematical induction 10^(2n-1)+1 is divisi...

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  3. If .^(n+1)C(r+1):^(n)C(r):^(n-1)C(r-1)=11:6:3, find the values of n an...

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  10. Prove that:underset(xrarr2)lim(|x-2|)/(x-2) does not exist.

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  11. Find the derivative of (x)/(sin^(n)x)

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  16. Solve the system of inequalities: 2(2x+3)-10<6(x-2), ((x-2)/2)+13ge2+(...

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  17. Evaluate underset(x rarr 0)lim(sin ax+bx)/(ax+sin bx)

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  18. Find the derivative of x^-3(5+3x)

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  19. Find the derivative of x^5(3-6x^-9).

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  20. Find the mean and variance of the first n natural numbers.

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