Question

if a=(-1 3 4 2)b=(2 1 3 -5 )x=(x1 x2 x3 x4) and a+b=x1 then find the values of x1,x2, x3, x4​

Answer 1

Answer:

Maths..not..gwood..swrry..❌

Answer 2

given:

$a = [ -1, 3, 4, 2 ], b = [ 2 , 1, 3, -5 ], x = [ x1, x2, x3, x4 ]$

to find: $x1, x2, x3$ and $x4$

solution:

let consider,

$a = [ -1 , 3, 4, 2 ]$  ⇔  $a = [ a1, a2, a3, a4 ]$

$b = [ 2, 1, 3, -5 ]$  ⇔  $b = [ b1, b2, b3, b4 ]$

a + b = x

$[ a1, a2, a3, a4 ] + [ b1, b2, b3, b4 ] = [ x1, x2, x3, x4]$

∴ $[ -1, 3, 4, 2 ] + [ 2, 1, 3, -5 ] = [ x1, x2, x3, x4]$

$1. x1 = [(-1) + 2] \\2. x2 =[3 + 1 ] \\3. x3 = [ 4 + 3] \\\\4. x4 = [ 2 + (-5) ]$

 ∴$x1 = 1, x2= 4, x3=7, x4$