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Efectuați calculele:a)-1,2la putere 2. b)(-1,2)la puterea 2. c)3 la puterea 20/2 la puterea 20

Răspuns :

Răspuns:

a)

[tex] - {1.2}^{2} = - \binom{6}{5} ^{2} = - \frac{36}{25} [/tex]

b)

[tex]( - 1.2)^{2} = ( - \frac{6}{5} )^{2} = \frac{36}{25} [/tex]

c)

[tex] \frac{3 ^{20} }{2 ^{20} } = ( \frac{3}{2} )^{20} [/tex]