作业帮3.14*1*8*240
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/09 15:34:35
3.14×15分之8+3.14×15分之7-3.14=3.14*（8/15+7/15-1）=3.14*（1-1）=3.14*0=0
3又2分之1>3.41>3.14>3分之8
（3.14×8的平方×20×1/3）÷（3.14×6的平方×20）=（3.14÷314）×（8的平方÷6的平方）×（20÷20）×1/3=1×4的平方÷3的平方×1×1/3=16/27≈0.59
1.57
3.14/4x^2*x=83.14=32xx≈0.098
原式=1+√2+（-2）-（√2-1）=1+√2-2-√2+1=0
3.146.289.4212.5615.718.8421.9825.1228.2631.434.5437.6840.8243.9647.150.2453.3856.5259.6662.865.9469
①（1/2-5/6+5/12-7/24）×24=12-20+10-7=-5②2×3.14-8×3.14+5×3.14-9×3.14=3.14（2-8+5-9）=3.14*（-10）=-31.4③100
是不是从1乘3.14乘到100乘3.14所有的结果?3.146.289.4212.5615.718.8421.9825.1230.631.434.5437.6840.8243.9647.150.245
3.14*1又8分之3+0.314*4分之25-31.4*0.2=3.14×（1+3/8+25/40-2）=3.14×(1+3/8+5/8-2)=0;您好,很高兴为您解答,skyhunter002为您
3.146.289.4212.5615.718.8421.9825.1230.631.434.5437.6840.8243.9647.150.2453.3856.5259.6662.865.9469.
除以一个数,就是乘以他的倒数所以240÷8分之1=240×8=1920
y=4^x在R上是增函数∵3.14>-3.14∴4^3.14>4^-3.14
1/8,0.1,-3.14,-22/7左大右小!
8²×3.14-144×3.14+9²×3.14=8²×3.14-2x8x9×3.14+9²×3.14=3.14x(8-9)²=3.14x1=3.14
3.14乘1又3/8+0.314乘6又1/4-31.4乘0.2=3.14×1又3/8+3.14×0.625-3.14×2=3.14×（1.375+0.625-2）=3.14×0=0
3.1413.143.1426.283.1439.423.14412.563.14515.73.14618.843.14721.983.14825.123.14928.263.141031.43.14
3×6x=4×(1/3x-1)18x=4/3x-4X=-6/25
12.56