The middle term in the expansion of \( (1+x)^{2 n} \) is : (A) \( \frac{(2 n) !}{n !} x^{n} \) (...

Channel:
PW Solutions
Subscribers:
458,000
Published on ● Video Link: https://www.youtube.com/watch?v=LJsXtYmefEw


Duration: 2:43
0 views
0

The middle term in the expansion of \( (1+x)^{2 n} \) is :
(A) \( \frac{(2 n) !}{n !} x^{n} \)
(B) \( \frac{(2 n) !}{n !(n-1) !} x^{n+1} \)
(C) \( \frac{(2 n) !}{(n !)^{2}} x^{n} \)
(D) \( \frac{(2 n) !}{(n+1) !(n-1) !} x^{n} \).
\( \mathrm{P} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-02-14Find \( \mathrm{S}_{\infty} \), for each of the following infinite G.P.s : \( 1, \frac{1}{2}, \f...
2023-02-14If \( a, b \) and \( c \) are three consecutive terms of an A.P., prove that \( k^{a}, k^{b} \) ...
2023-02-14There are four numbers such that the first three of them form an arithmetic sequence and the las...
2023-02-14Find the coefficient of \( x^{5} \) in the expansion of : \[ (1+x)^{21}+(1+x)^{22}+\ldots \ldots...
2023-02-14रेनडियर मॉस होती है (A) स्फेगनम (B) मार्केन्शिया (C) क्लेडोनिया रेन्जिफरेरा (D) उपरोक्त में से क...
2023-02-14An gas of H-atoms in excited state \( n_{2} \) absorbs a photon of some energy and jump in highe...
2023-02-14Find the middle term in the expansion of \( \left(\frac{x}{3}+9 y\right)^{10} \). W
2023-02-14One radioactive nuclide has a decay constant that is half that of another. If the two nuclides s...
2023-02-14Let \( S_{p} \) and \( S_{q} \) be the coefficients of \( x^{p} \) and \( x^{q} \) respectively ...
2023-02-14Find the coefficient of \( x^{10} \) in the expansion of : \[ \left(1+x+x^{2}+x^{3}+\ldots+x^{10...
2023-02-14The middle term in the expansion of \( (1+x)^{2 n} \) is : (A) \( \frac{(2 n) !}{n !} x^{n} \) (...
2023-02-14A convex lens is held \( 45 \mathrm{~cm} \) above the bottom of an empty tank. The image of a po...
2023-02-14Expand \( \left(x-\frac{1}{y}\right)^{11}, y \neq 0 \).
2023-02-14Two radioactive materials \( X_{1} \) and \( X_{2} \) have decay constants \( 10 \lambda \) and ...
2023-02-14हेलोटिज्म (Helotism) शब्द किसके सहजीवन के लिये उपयोग किया गया (A) शैवाल तथा जीवाणु के (B) शैवाल ...
2023-02-14Write and simplify the term involving \( a^{2} b^{5} \) in \[ (a-2 b)^{4}(a+b)^{3} \] W
2023-02-14Represent the following inequations graphically in twodimensional plane and hence solve them : \...
2023-02-14A solid sphere of radius \( R \) and density \( \rho \) is attached to one end of a massless spr...
2023-02-14The end of a capillary tube with radius \( r \) is immersed into water. What amount of heat will...
2023-02-14A large open tank has two holes in the wall. One is a square hole of side \( L \) at a depth \( ...
2023-02-14A particle of mass \( m \) is attached to one end of a massless spring of force constant \( k \)...