(-191910*9898+989898*1919)/(1/2+3.14)=?
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(-191910*9898+989898*1919)/(1/2+3.14)=?
(-191910*9898+989898*1919)/(1/2+3.14)
=(-(191900+10)*9898+989898*1919)/(0.5+3.14)
=(-1919*989800-98980+989898*1919)/3.64
=(1919*(989898-989800)-98980)/3.64
=(1919*98-98980)/3.64
=98*(1919-1010)/3.64
=98*9/3.64
=44100/182
=3150/13
=(-(191900+10)*9898+989898*1919)/(0.5+3.14)
=(-1919*989800-98980+989898*1919)/3.64
=(1919*(989898-989800)-98980)/3.64
=(1919*98-98980)/3.64
=98*(1919-1010)/3.64
=98*9/3.64
=44100/182
=3150/13
1/2+5/6+11/12+19/20+...+9898/9900
[(12.56/3.14)^2*3.14/(4*3)]/(1^2*3.14)=1.3m ^
①(1/2-5/6+5/12-7/24)×24= ②2×3.14-8×3.14+5×3.14-9×
3.14乘1到1001X3.14=3.14 2X3.14=6.38
1/2×3.14等于?
r=(10/3.14)^(1/2)中^表示什么
(-3.14)x5.597+(3.14)x(-5.597)=_______.(-1/2+2/3-1/4)x(-24)=_
2X+3.14X=?
3.14x+x=x/2的平方 乘以3.14
3.14*36X=3.14*64*(0.875X-2)
利用因式分解计算:(1)21*3.14+62*3.14+17*3.14(2)758^2
1*3.14~100*3.14