Let \( m \) be a positive integer \( \& \)
\[
D_{r}=\left|\begin{array}{ccc}
2 r-1 & { }^{m} C_{....
Let \( m \) be a positive integer \( \& \)
\[
D_{r}=\left|\begin{array}{ccc}
2 r-1 & { }^{m} C_{r} & 1 \\
m^{2}-1 & 2^{m} & m+1 \\
\sin ^{2}\left(m^{2}\right) & \sin ^{2}(m) & \sin ^{2}(m+1)
\end{array}\right|(0 \leq r \leq m),
\]
P
then the value of \( \sum_{r=0}^{m} D_{r} \) is given by:
(A) 0
(B) \( \mathrm{m}^{2}-1 \)
(C) \( 2^{\mathrm{m}} \)
(D) \( 2^{m} \sin ^{2}\left(2^{m}\right) \)
π²PW App Link - https://bit.ly/YTAI_PWAP
πPW Website - https://www.pw.live
Other Videos By PW Solutions
2024-01-21 | If \( n^{\text {th }} \)-order square matrix \( A \) is a orthogonal, then
\( |\operatorname{adj.... |
2024-01-21 | Assertion (A): If every element of a third order determinant of value \( D \) is multiplied by 5.... |
2024-01-21 | Let \( D_{1}=\left|\begin{array}{ccc}a & b & a+b \\ c & d & c+d \\ a & b & a-b\end{array}\right|.... |
2024-01-21 | Let \( A \) be a \( 2 \times 2 \) matrix.
Assertion (A): \( \operatorname{adj}(\operatorname{adj.... |
2024-01-21 | If \( \left|\begin{array}{ccc}x^{n} & x^{n+2} & x^{n+4} \\ y^{n} & y^{n+2} & y^{n+4} \\ z^{n} & .... |
2024-01-21 | Assertion (A): If the matrix \( A=\left[\begin{array}{ccc}1 & 3 & \lambda+2 \\ 2 & 4 & 8 \\ 3 & .... |
2024-01-21 | If the system of linear equations
\[
\begin{array}{l}
(\cos \theta) x+(\sin \theta) y+\cos \thet.... |
2024-01-21 | If \( \Delta=\left|\begin{array}{ccc}1 & 3 \cos \theta & 1 \\ \sin \theta & 1 & 3 \cos \theta \\.... |
2024-01-21 | If \( \mathrm{A}, \mathrm{B} \) and \( \mathrm{C} \) are such that \( \mathrm{A}+\mathrm{B}+\mat.... |
2024-01-21 | Match the following
\begin{tabular}{|c|c|c|c|}
\hline & List -I & & List -II \\
\hline \multirow.... |
2024-01-21 | Let \( m \) be a positive integer \( \& \)
\[
D_{r}=\left|\begin{array}{ccc}
2 r-1 & { }^{m} C_{.... |
2024-01-21 | If the system of equations
\[
\left.\begin{array}{l}
x-\lambda y-z=0 \\
\lambda x-y-z=0 \\
x+y-z.... |
2024-01-21 | The value of \( \left|\begin{array}{ccc}-1 & 2 & 1 \\ 3+2 \sqrt{2} & 2+2 \sqrt{2} & 1 \\ 3-2 \sq.... |
2024-01-21 | The determinant \( \left|\begin{array}{ccc}x p+y & x & y \\ y p+z & y & z \\ 0 & x p+y & y p+z\e.... |
2024-01-21 | Area of triangle whose vertices \( \left(a, a^{2}\right)\left(b, b^{2}\right)\left(c, c^{2}\righ.... |
2024-01-21 | The system of equations
\[
\begin{array}{l}
\mathrm{kx}+(\mathrm{k}+1) \mathrm{y}+(\mathrm{k}-1).... |
2024-01-21 | Let \( \alpha, \beta \) be the roots of the equation \( \mathrm{ax}^{2}+\mathrm{bx}+\mathrm{c}=0.... |
2024-01-21 | If \( \left|a x^{2}+b x+c\right| \leq 1 \) for all \( x \) is \( [0,1] \) then.... |
2024-01-21 | The value of
\[
\begin{array}{l}
6+\log _{3 / 2}\left(\frac{1}{3 \sqrt{2}} \sqrt{4-\frac{1}{3 \s.... |
2024-01-21 | If the system of equations
\[
\begin{array}{l}
x+2 y+2 z=1 \\
x-y+3 z=3 \\
x+11 y-z=b
\end{array.... |
2024-01-21 | Let \( f(x)=a x^{2}+b x+c ; a, b, c \in R \)
It is given \( |f(x)| \leq 1, \forall|x| \leq 1 \)..... |