Odpowiedź:
E)
1 1/5 * 1 2/3 * 1/7 + (1 1/7)² = 6/5 * 5/3 * 1/7 + (8/7)² = 2 * 1/7 + 64/49 =
= 2/7 + 1 15/49 = 14/49 + 1 15/49 = 1 29/49
g)
10 - 2 * (3 1/5 - 2 1/4 * 1/3) = 10 - 2 * (3 1/5 - 9/4 * 1/3) = 10 - 2 * (3 1/5 - 3/4) =
= 10 - 2 * (3 4/20 - 15/20) = 10 - 2 * (2 24/20 - 15/20) = 10 - 2 * 2 9/20 =
= 10 - 2 * 49/20 = 10 - 49/10 = 10 - 4,9 = 5,1
Szczegółowe wyjaśnienie:
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Odpowiedź:
E)
1 1/5 * 1 2/3 * 1/7 + (1 1/7)² = 6/5 * 5/3 * 1/7 + (8/7)² = 2 * 1/7 + 64/49 =
= 2/7 + 1 15/49 = 14/49 + 1 15/49 = 1 29/49
g)
10 - 2 * (3 1/5 - 2 1/4 * 1/3) = 10 - 2 * (3 1/5 - 9/4 * 1/3) = 10 - 2 * (3 1/5 - 3/4) =
= 10 - 2 * (3 4/20 - 15/20) = 10 - 2 * (2 24/20 - 15/20) = 10 - 2 * 2 9/20 =
= 10 - 2 * 49/20 = 10 - 49/10 = 10 - 4,9 = 5,1
Szczegółowe wyjaśnienie: