(2/1)^2*3.1415926*1.5=4.7m³什么意思
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(2/1)^2*3.1415926*1.5=4.7m³什么意思
(2/1)^2*3.1415926*1.5=4.7m³什么意思
(2/1)^2*3.1415926*1.5=4.7m³什么意思
(2) =(4×2.1×2.5+9.7)÷(1.05÷0.5÷3+8.4÷0.7÷0.4...=(3/4+25/8/1.25)/(21/4-5/4*9/5)=(28-2.5)/(21-9
计算:3.1415926^2-2×3.1415926×13.1415926+13.1415926^2
2 * Sin(45 * 3.1415926 / 180) * Cos(45 * 3.1415926 /
(2/1)^2*3.1415926*1.5=4.7m³什么意思
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3.1415926
3.1415926( )
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