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3.14x1.2x1.2x2=

解: 这个用计算器非常好算: 3.14x1.2x1.2x2 =(3.14x2)x(1.2x1.2) =6.28x1.44 =9.0432

1.(24x10+24x3x2+10x3x2-120)x1.4 2.1分钟前进3.14x1.2x20m?1分钟前轮压过的路面面积是3.14x1.2x1.5x20㎡? 3.(3.14X2X2X3+3.14X2X2X0.6/3)X750X80%

看你图上的内容,这里的x我就当成是整数来做了 #include double fun(int x) { return x * x - 3.14 * x - 6; } int main() { int x = -10; while(x

3.14×10²+3.14x²=200, x²=200÷3.14-100²<0, 无解

rt

=3.14×0.25×3×4 =1×3×3.14 =9.42

1/4×3.14x400x2-400 =628-400 =228

解:1.57x+x=15.42 2.57x=15.42 x=15.42÷2.57 x=6

3.14x6x12+314x(6÷2)x2 =3.14x6x12+314x3x2 =3.14x6x12+314x6 =3.14x6x12+3.14x0.06 =3.14x72+3.14x0.06 =3.14x(72+0.06) =3.14x72.06 =226.2684 希望帮到你 望采纳 谢谢 加油

原题=3.14*(1+2+3+...+97+98+99+100) =3.14*【(1+100)*100/2】 =3.14*5050 =15857

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