Oblicz:
a) 4^-7 x 4^6 x 4^-2 =
b) 7^-4 x 7^3 =
c) 5^-4 x 5^3 / 5^-2 =
d) (0,5)^-3 x 2^4 =
Ps. Legenda:
^ - potęga( potęga jest ujemna)
x - razy
/ - ułamek
0,5 - jedna druga
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Oblicz:
a) 4^-7 x 4^6 x 4^-2 =
= 4⁻⁷* 4⁶ *4⁻² =
= 4⁻³
b) 7^-4 x 7^3 =
= 7⁻⁴*7³ =
= 7⁻¹ =
= (1/7)¹ =
1/7
c) 5^-4 x 5^3 / 5^-2 =
= 5⁻⁴*5³ : 5⁻² =
= 5⁻¹ : 5⁻² =
= 5⁻³
d) (0,5)^-3 x 2^4 =
= (½)⁻³ * 2⁴ =
= 2³* 2⁴ =
= 2⁷
Ps. Legenda: * - mnożenie
^ - potęga( potęga jest ujemna)
x - razy
/ - ułamek
0,5 - jedna druga
a)
b)
c)
d)