If A = -4-49 45-8 44-8 Then A-1 = Use A-1 to write b as a linear combination of the columns of A. --- b = -4 4 + 4 -4 LO 5 4 + 6 -8 -8

Q: 12-10-1+4

A: Given:

Q: 3x - 5y= -13  -2x + 3y = 8

A:

Q: 11x-20y=28  3x+4y=36

A:

Q: verify that A + B = B + A

A:

Q: 12y+x=-3y+5x-6 Put in standard form.

A:

Q: 7x - 4y = -3 -3x + 4y = -1

A:

Q: Find A + B. [-3 3 -91 A =7 6. B= 5 4 2 4 6 8 4 2

A: To find A+B

Q: 15-5a-3b+ab

A: The given expression is: 15-5a-3b+ab

Q: a+2b+4c+3d=21 -3a+4b-2c+3d=-1 a+6c+3d=-19 3a+4b-3c-2d=16

A:

Q: Every row operation is reversible. O True O False

A: Every row operation is reversible.

Q: 25a2-40a+12

A: Given,

Q: Find the inverse of AB if 5 -4 A-¹ and B-1 = = (AB)-¹ = -2 -4 14 -5 2 ]

A:

Q: a/a-6 = -2/a-1

A: Here we have to find the value of 'a'.

Q: 2x + 4y + 6 + 2y - 5 + 3x =

A: Given 2x+4y+6+2y-5+3x=______

Q: -1 -4 -1 5 21 A -2 -5 -14 4888|16 Find the LU factorization of A = A =

A:

Q: Find a . b. a = (5, -5, 2), b =(3, 4, -1)

A: The dot product of a=a1, a2, a3 and b=b1, b2, b3 is: a·b=a1b1+ a2b2+ a3b3

Q: 3x + 5 = -5x + 3 ×=

A:

Q: X1 X2 X3 -3X1 = - X2 + X3 = −6 5X3 2X1 + 4X2 - 2×2 + 3X3 X1 7.000 = = 50 = - X1 X2 X3 우 5

A:

Q: Cmbine the terms  4x+3x 10z+4+8z+3 21y+3Y  121/2k+51/2+31/2k  15n+2 4m +4 + 3m

A: We have to combine the given curve.

Q: 18-7х b. 5-6х 5x+9y 7у-12х 3+11х 2. 5х-2у 5х-2у -6х+5

A:

Q: 3x - 4y = 1 3x-2y = -1

A: Denote the equations. 3x-4y=1            ...13x-2y=-1            ...2