Question

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Answer 1

Ответ во вложении!!!

Answer 2

Ответ:

$frac{{(15 times {10}^{ - 3} )}^{2} }{2 times 5 times {(2 times 5)}^{ - 8} } = \ frac{{(3 times 5 times {(2 times 5)}^{ - 3} )}^{2} }{2 times 5 times {{2}^{ - 8} times 5}^{ - 8} } = \ frac{{(3 times 5 times {{2 }^{ - 3} times 5}^{ - 3} )}^{2} }{2 times 5 times {{2}^{ - 8} times 5}^{ - 8} } = \ frac{{{3}^{2} times {5}^{2} times {{2 }^{ - 6} times 5}^{ - 6} } }{2 times 5 times {{2}^{ - 8} times 5}^{ - 8} } = \ = {3}^{2} times {5}^{2 + ( - 6) - 1 - ( - 8)} times {2}^{ - 6 - 1 - ( - 8)} = \ = {3}^{2} times {5}^{3} times {2}^{1} =2250$