Class 12th

65. $\left[\begin{array}{l}2-35\\ 32-5\\ 11-5\end{array}\right],find\text{\hspace{0.17em}A}{}^{-1}.Using\; A{}^{-\mathrm{1 }}$solve the system of equations.

$\begin{array}{l}2x-3y+5z=11\\ 3x+2y-4z=-5\\ x+y-2z=-3\end{array}$

64. $\begin{array}{l}x-y+2z=7\\ 3x+4y-5z=-5\\ 2x-y+3z=12\end{array}$

63. $\begin{array}{l}2x+3y+3z=5\\ x-2y+z=-4\\ 3x-y-2z=3\end{array}$

62. $\begin{array}{l}x-y+z=4\\ 2x+y-3z=0\\ x+y+z=2\end{array}$

61. $\begin{array}{l}2x+y+z=1\\ x-2y-z=\frac{3}{2}\\ 3y-5z=9\end{array}$

Hole is
(a) An anti-particle of electron
(b) A vacancy created when an electron leaves a covalent bond
(c) Absence of free electrons
(d) An artificially created particle

Kindly Consider the following

60. $\begin{array}{l}5x+2y=3\\ 3x+2y=5\end{array}$

A 220 V AC supply is connected between points A and B (figure). What will be the potential difference V across the capacitor?

Kindly Consider the following

59. $\begin{array}{l}4x-3y=3\\ 3x-5y=7\end{array}$

Kindly Consider the following

58. $\begin{array}{l}2x-y=-2\\ 3x+4y=3\end{array}$