1.Dopasuj okleślenia do liczb:
I.Kwadrat sumy liczb 2 i 3
II.Suma kwadratów liczb 2 i 3
A.(2*3)² B.(2+3)² C.2²+3²
Pary to: I i ... oraz II i ...
2.Wyrażenie (a/b)²(b/a)⁻²(1/a)⁻¹ doprowadż do najprostrzej postaci.
3.Uzupełnij luki tak, aby otzrymać zdania prawdziwe.
4/9=(...)⁻²
1/81=3⁻⁻⁻⁻
(1,25)⁻²=....
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I B
II C
zad.2
(a/b)²(b/a)⁻²(1/a)⁻¹ = (a^2/b^2)(1/b^2/a^2)(1/1/a) = (a^2/b^2)(a^2/b^2)(1/a) = (a^4/b^4)(1/a) = a^4/b^4*a
zad3. 4/9 = (2/3)^-2
1/81 = 3^-3
(1,25)^-2 = 1/1,5625