Question

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

Answer 1

Răspuns:

a)

$- {1.2}^{2} = - \binom{6}{5} ^{2} = - \frac{36}{25}$

b)

$( - 1.2)^{2} = ( - \frac{6}{5} )^{2} = \frac{36}{25}$

c)

$\frac{3 ^{20} }{2 ^{20} } = ( \frac{3}{2} )^{20}$