Dadas as matrizes a)[1 2 3 4] b)[5 -6 7 -1] c)[2 5 3 1 6 4] d)[0 1 3 4 2 5] Determine: a) a+b e b+a b) 3a+b e 3a-b c) 2c e 2d d) c-d e dc
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a)a+b
[1 2 3 4]+[5 -6 7 -1]=
[1+5 2-6 3+7 4-1]=
[6 -4 10 3]
b+a
[5 -6 7 -1]+[1 2 3 4]=
[5+1 -6+2 7+3 -1+4]=
[6 -4 10 3]
b)3a+b
3[1 2 3 4]+[5 -6 7 -1]=
[3.1 3.2 3.3 3.4]+[5 -6 7 -1]=
[3 6 9 12]+[5 -6 7 -1]=
[3+5 6-6 9+7 12-1]=
[8 0 16 11]
3a-b
3[1 2 3 4]-[5 -6 7 -1]=
[3 6 9 12]-[5 -6 7 -1]=
[3-5 6-(-6) 9-7 12-(-1)]=
[-2 12 2 13]
c)2c
2[2 5 3 1 6 4]=
[2.2 2.5 2.3 2.1 2.6 2.4]=
[4 10 6 2 12 8]
2d
2[0 1 3 4 2 5]=
[2.0 2.1 2.3 2.4 2.2 2.5]=
[0 2 6 8 4 10]
d)c-d
[2 5 3 1 6 4]-[0 1 3 4 2 5]=
[2-0 5-1 3-3 1-4 6-2 4-5]=
[2 4 0 -3 4 -1]
c.d
[2 5 3 1 6 4].[0 1 3 4 2 5]=
[2.0 5.1 3.3 1.4 6.2 4.5]=
[0 5 9 4 12 20]
[1 2 3 4]+[5 -6 7 -1]=
[1+5 2-6 3+7 4-1]=
[6 -4 10 3]
b+a
[5 -6 7 -1]+[1 2 3 4]=
[5+1 -6+2 7+3 -1+4]=
[6 -4 10 3]
b)3a+b
3[1 2 3 4]+[5 -6 7 -1]=
[3.1 3.2 3.3 3.4]+[5 -6 7 -1]=
[3 6 9 12]+[5 -6 7 -1]=
[3+5 6-6 9+7 12-1]=
[8 0 16 11]
3a-b
3[1 2 3 4]-[5 -6 7 -1]=
[3 6 9 12]-[5 -6 7 -1]=
[3-5 6-(-6) 9-7 12-(-1)]=
[-2 12 2 13]
c)2c
2[2 5 3 1 6 4]=
[2.2 2.5 2.3 2.1 2.6 2.4]=
[4 10 6 2 12 8]
2d
2[0 1 3 4 2 5]=
[2.0 2.1 2.3 2.4 2.2 2.5]=
[0 2 6 8 4 10]
d)c-d
[2 5 3 1 6 4]-[0 1 3 4 2 5]=
[2-0 5-1 3-3 1-4 6-2 4-5]=
[2 4 0 -3 4 -1]
c.d
[2 5 3 1 6 4].[0 1 3 4 2 5]=
[2.0 5.1 3.3 1.4 6.2 4.5]=
[0 5 9 4 12 20]
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