Odpowiedź:
1) (-1 ⅖) ³= 7/5 x 7/5 x 7/5 = 343/125 = 2 93/125
2) √36 + √49 - 2√121/144 = 6 + 7 - 2 x 11/12 = 6+7-11/6= 6+7-1 ⅚ = 6+ 5 ⅙ = 11 ⅙
3) √ 1 15/49 + ³√8 + 2 x 3⁴ = √64/49 + 2 + 2 x 81 =
= 8/7 + 2 + 162 = 1 ⅐ + 2 + 162 = 3 ⅐ + 162 =
= 165 ⅐
sory jak coś źle
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Odpowiedź:
1) (-1 ⅖) ³= 7/5 x 7/5 x 7/5 = 343/125 = 2 93/125
2) √36 + √49 - 2√121/144 = 6 + 7 - 2 x 11/12 = 6+7-11/6= 6+7-1 ⅚ = 6+ 5 ⅙ = 11 ⅙
3) √ 1 15/49 + ³√8 + 2 x 3⁴ = √64/49 + 2 + 2 x 81 =
= 8/7 + 2 + 162 = 1 ⅐ + 2 + 162 = 3 ⅐ + 162 =
= 165 ⅐
sory jak coś źle