1) 7¹²×3+4×7¹³
------------=
(7¹²÷7⁸)³
2) √32+√72-√50=
3) (3⁻²)⁻³÷3⁸=
4) (1i5/11)⁻²÷(4/11)⁻²=
5/11; 4/11 to są ułamki, tzn. (⅔)
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