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ma puteți ajuta va rog?​

Ma Puteți Ajuta Va Rog class=

Răspuns :

Răspuns:

a) B=2×A+I2

[tex]2 \times \binom{1 \: 1}{1 \: - 1} + \binom{1 \: 0}{0 \: 1} [/tex]

[tex] \binom{2 \: 2}{2 \: - 2} + \binom{1 \: 0}{0\: 1} [/tex]

[tex] \binom{3 \: 2}{3 \: - 1} [/tex]

c) x×I2+2A=

[tex] \binom{4 \: 2}{2 \: 0} [/tex]

[tex]x \times \binom{1 \: 0}{0 \: 1} + 2 \times \binom{1 \: 1}{1 \: - 1} = \binom{4 \: 2}{2 \: 0} [/tex]

[tex] \binom{x \: 0}{0 \: x} + \binom{2 \: 2}{2 \: - 2} = \binom{4 \: 2}{2 \: 0} [/tex]

[tex] \binom{x + 2 \: 2}{2 \: x - 2} = \binom{4 \: 2}{2 \: 0} [/tex]

x+2=4---->x=2

2=2

2=2

x-2=0---->x=2