If \( \sum_{r=0}^{10}\left(\frac{r}{{ }^{10} C_{r}}\right)=20 \), find the value of \( \sum_{r=0....

Channel:
PW Solutions
Subscribers:
449,000
Published on ● Video Link: https://www.youtube.com/watch?v=DKDr-Ry76og


Duration: 2:43
0 views
0

If \( \sum_{r=0}^{10}\left(\frac{r}{{ }^{10} C_{r}}\right)=20 \), find the value of \( \sum_{r=0}^{10}\left(\frac{1}{{ }^{10} C_{r}}\right) \).
\( \mathrm{P} \)
W
Activate Windows
Go to Settings to activate W ind ows


📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2024-01-21If the reciprocals of the roots of the equation \( 10 x^{3}-a x^{2}-54 x-27=0 \) are in AP, then....
2024-01-21If \( 5^{2} \cdot 5^{4} \cdot 5^{6} \cdots 5^{2 n}=(0.04)^{-28} \), then \( n \) is equal to....
2024-01-21The difference between the fourth and the first term of a GP is 52 and the sum of the first thre....
2024-01-21The \( m^{\text {th }} \) term of an AP is \( a \) and its \( n^{\text {th }} \) term is \( b \)....
2024-01-21If the sum of the roots of the quadratic equation \( a x^{2}+b x+c=0 \) is equal to the sum of t....
2024-01-21The number of terms in an \( A P \) is even. The sum of the odd terms is 24 and the sum of the e....
2024-01-21Match the following columns: \begin{tabular}{|l|l|l|l|} \hline \multicolumn{3}{|c|}{ Column-I } ....
2024-01-21The sum of the first \( n \) terms of two arithmetic series are in the ratio \( (7 n+1):(4 n+27)....
2024-01-21If \( m \) be unit digit of \( \left(27^{50}+18^{50}\right) \) and \( n \) is the remainder when....
2024-01-21For some positive integer \( n \) \[ \left(1+x+x^{2}\right)^{n}=a_{0}+a_{1} x+a_{2} x^{2}+\ldots....
2024-01-21If \( \sum_{r=0}^{10}\left(\frac{r}{{ }^{10} C_{r}}\right)=20 \), find the value of \( \sum_{r=0....
2024-01-21Let \( F(n)=\sum_{r=0}^{n-1}\left(\frac{{ }^{n} C_{r}}{{ }^{n} C_{r}+{ }^{n} C_{r+1}}\right) \),....
2024-01-21The coefficient of \( a^{8} b^{6} c^{4} \) in the expansion of \( (a+b+c)^{18} \) is-....
2024-01-21Values of \( x \) for which the sixth term of the expansion of \( E=\left(3^{\log _{3} \sqrt{9^{....
2024-01-21If \( n \) is positive integer and if \( \left(1+4 x+4 x^{2}\right)^{n}=\sum_{r=0}^{2 n} a_{r} x....
2024-01-21For a positive integer \( n \), if the expansion of \( \left(\frac{5}{x^{2}}+x^{4}\right)^{n} \)....
2024-01-21If \( n \) is positive integer and if \( \left(1+4 x+4 x^{2}\right)^{n}=\sum_{r=0}^{2 n} a_{r} x....
2024-01-21If \( (8+3 \sqrt{7})^{n}=P+F \), where \( P \) is an integer and \( F \) is a proper fraction th....
2024-01-21\( 1+\frac{1}{4}+\frac{1.3}{4.8}+\frac{1.3 .5}{4.8 .12}+\ldots \ldots= \)....
2024-01-21The middle term in the expansion of \( \left(x+\frac{1}{2 x}\right)^{2 n} \) is....
2024-01-21If \( (1+x)^{n}=C_{0}+C_{1} x+C_{2} x^{2}+\ldots . .+C_{n} x^{n} \), then \( C_{0} C_{2} \) \( +....