Cái đống bùi nhùi nhức đầu quá;) $3:0.3-1.(13)×5:6+7-8:5 -π:0.1+7.1(36)×0.2:4.5:2.3×6=?$
1 câu trả lời
Lấy `\pi=3.14(15)`
`3:0.3-1.(13)"x"5:6+7-8:5-3.14(15):0.1+7.1(36)"x"0.2:4.5:2.3"x"6`
`=10-280/297+7-8/5-31.4(15)+628/759`
`\approx-16.13`
Lấy `\pi=3.14(15)`
`3:0.3-1.(13)"x"5:6+7-8:5-3.14(15):0.1+7.1(36)"x"0.2:4.5:2.3"x"6`
`=10-280/297+7-8/5-31.4(15)+628/759`
`\approx-16.13`