załącznik
[(-2/3)^-3+3·2^-3]^-3=
=[(-3/2)³+3·1/8]^-2=
=(-27/8+3/8)^-2=
=(-3)^-2=(-1/3)²=1/9
[(-2/3)⁻³+3·2⁻³]⁻² = [(-3/2)³+3·1/8]⁻² = [-27/8 + 3/8]⁻²= [-24/8]⁻² =[-3]⁻² = 1/9
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[(-2/3)^-3+3·2^-3]^-3=
=[(-3/2)³+3·1/8]^-2=
=(-27/8+3/8)^-2=
=(-3)^-2=(-1/3)²=1/9
[(-2/3)⁻³+3·2⁻³]⁻² = [(-3/2)³+3·1/8]⁻² = [-27/8 + 3/8]⁻²= [-24/8]⁻² =[-3]⁻² = 1/9