(n−1)C(r−1)=(10−1)C(4−1)=9C3 Statement 1 is correct Statement 2 is also correct From 9 we can select 3 in 9C3 ways. It is correct explanation.
This question has Statement −1 and Statement −2. Of the four choices given after the statements, choose the one that best describes the two statements. Statement - 1 : The number of ways of distributing 10 identical balls in 4 distinct boxes such that no box is empty is 9C3 Statement-2: The number of ways of choosing any 3 places from 9 different places is 9C3.
Held on 30 Apr 2011 · Verified 6 Jul 2026.
Statement −1 is true, Statement −2 is true; Statement −2 is not a correct explanation for Statement −1
Statement −1 is true, Statement −2 is false.
Statement −1 is false, Statement- 2 is true.
Statement −1 is true, Statement −2 is true; Statement −2 is a correct explanation for Statement −1
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Let $a_{1}=1$ and for $n \geqslant 1, a_{n+1}=\frac{1}{2} a_{n}+\frac{n^{2}-2 n-1}{n^{2}(n+1)^{2}}$. Then $\left|\sum_{n=1}^{\infty}\left(a_{n}-\frac{2}{n^{2}}\right)\right|$ is equal to $\_\_\_\_$.
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