Find the following matrices:a) A + B.(b) A - B.(c) -4A.A=begin{bmatrix}2 & -10&-2 14 & 12&104&-2&2 end{bmatrix} , B=begin{bmatrix}6 & 10&-2 0 & -12&-4-5&2&-2 end{bmatrix}

Ayaana Buck 2021-03-07 Answered

Find the following matrices:
a) A+B.
(b) AB.
(c) 4A.
A=[2102141210422],B=[61020124522]

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Expert Answer

Elberte
Answered 2021-03-08 Author has 95 answers
Given,
A=[2102141210422],B=[61020124522]
a)A+B=[2102141210422]+[61020124522]
=[2+610+102214+01212104452+222]
=[8041406100]
Step 2
b)AB=[2102141210422][61020124522]
=[2610102(2)14012(12)10(4)4(5)222(2)]
=[4200142414944]
c)4A=4[2102141210422]
=[4(2)4(10)4(2)4(14)4(12)4(10)4(4)4(2)4(2)]
=[84085648401688]
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