Question

3)|5,2 · 10-4) · (3.4 . 10-3);
4)(4,5 . 10-5): (7 • 10-8).
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Answer 1

Решение:

3) (5,2 • 10 - 4) • (3.4 • 10 - 3) = (52 - 4)•(34 - 3) = 48 • 31 = 1488;

4) (4,5 • 10 - 5) : (7 • 10 - 8) = (45 - 5) ,: (70 - 8) = 40 : 62 = 40/62 = 20/31.