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a/log180=log2.32.10=log2+2log3+1≈0,30103+2(0,47712)+1=2,25527b/log0.015=log10−3.15=log10−3+log3+log102=−3+log3+1−log2≈−2+0,47712−0,30103log0,015≈−2+0,17609=−1,82391=2,17609c/log3√45=13log45=13log810(3log2−1)=log2−13≈0,30103−0,33333=−0,03230log3√45≈1,96770
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