oblicz w pamięci a) 3 x (- 2/3)= b) (-4) x 5/12 = c) 1,2 x (-3) = d) (-4,7) x 2= e) (-3/4) x (-8)= f) (-4) x (-1,1)= g) (-3) ² = h) -4²= i) -(-1/2)² j) (-2)³= k) (-1/3)³= l) -(-1)³= m) (-2)² x (1/2) ² n) -(3/2)² + (-3/2)²= o) (-2/3) ² x (-1) ³= te 'x' to razy, a te 2 i 3 o góry to 'do potęgi', 'do kwadratu', ale to już chyba wiecie...
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a)-2
b)-1x2/3
c)-3,6
d)-9,4
e)6
f)4,4
g)9
h)-16
i)-1/4
j)-8
k)-1/27
l)1
m)1
n)0
o)-4/9
a) 3*(-2/3) = -6/3 = -2
b) (-4)*5/12 = -20/12= - 1 i8/12 = - 1 i 2/3
c) 1,2 * (-3) = - 3,6
d) (-4,7) * 2 = - 9,4
e) (-3/4) * (-8) = 24/4 = 6
f) (-4) * (- 1,1) = 4,4
g) (-3) do2 = (-3) * (-3) = 9
h) -4 do 2 = - 16
i) -(-1/2)do2 = -(-1,2)*(-1/2) = - (1/4) = -1/4
j) (-2) do 3 = (-2)*(-2)*(-2)= - 8
k) (-1/3) do3 = - 1/27
l) - (-1) do3 = -(-1) = 1
m) (-2) do2 * (1/2) do2 = 4 * 1/4 = 4/4 = 1
n) -(3/2) do2 +(-3/2)do2= -(9/4) + (9/4) = -9/4 + 9/4 = 0
o) (-2/3)do2 * (-1)do3 = 4/9 *(-1) = - 4/9