Question

Calcule : a) A + B , b) A-B , c) 3.A e d) 2.B

Answer 1

Resposta:

A={2 3 8}

{1- 4 0}

B={4 5 -9}

{6 2 7 }

C={2 0 }

{8 6}

{-4 -10}

__________________a) A+B

{2 3 8 }+ {4 5-9} ={6 8- 1}

{1 -4 0} {6 2 7} { 7 2 7}

____________

2A -B

2. {2 3 8 } - {4 5 -9}

{ 1 -4 0} {6 2 7}

=(4 6 16)-(4 5 - 9)

(2 -8 0) ( 6 2 7)

= {0 1 25}

{-4 10 7}

__________________

3A- 1/2

3. {2 3 8} - 1/2

{1 -4 0}

=(6 9 24) - 1/2

(3 -12 0)

= (6/2 9/2 24/2)

( 3/2 12/2 0 )

Simplificando=(3 9/2 12

(3/2 6 0)