Question

( begin{array}{l}{left[begin{array}{cc}2 & -3 4 & 1end{array}right]-left[begin{array}{ll}a & c b & dend{array}right]=left[begin{array}{cc}1 & 4 2 & -5end{array}right]} {left[begin{array}{ccc}2 & -9 & -3-c 4-b & -2end{array}right]=left[begin{array}{cc}1 & 4 2 & -5end{array}right]} 2-9=1 & 3(a=0)-3-(=1 4-b=2 & Rightarrow 5=2end{array} )

# * 42 -37_fa c7_11 47 14 o n d = athen (a, b, c, d) is

Solution