Resposta :
a -
[tex]11 {}^{2} = 11.11 = 121[/tex]
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b -
[tex]7 {}^{3} = 7.7.7 = 343[/tex]
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c -
[tex]8 {}^{2} = 8.8 = 64[/tex]
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d -
[tex]2 {}^{5} = 2.2.2.2.2= 32[/tex]