Question

Efectuati:
(2/3) la puterea 6 : (-2/3) la puterea 4 + ( 6+ 3/2 * 8/3 ) * 1/18
*- inseamna inmultire

Answer 1

$\frac{2 ^{6} }{3 ^{6} } : \frac{2 ^{4} }{3 ^{4} } +(6+4)* \frac{1}{18} = \frac{2 ^{2} }{3 ^{2} } + \frac{10}{18} = \frac{4}{9} + \frac{5}{9} = \frac{(4+5)}{9} = \frac{9}{9} =1$

Answer 2

Pasul I.   (2/3)⁶ : (2/3)⁴=(2/3)²=4/9     ***
Pasul II.  (6+3/2*8/3)*1/18=(6+4)*1/18=10/18=5/9   ***
Finalizare ...  4/9 + 5/9 = 9/9 = 1