wnlt.net
当前位置:首页 >> X的3次方等于100 X等于多少 >>

X的3次方等于100 X等于多少

x^3-100x=0 x(x-100)=0 x(x-10)(x+10)=0 ①x=0 ②x-10=0 ③x+10=0 所以x有三个值:x1=-10 x2=0 x3=10

121乘以10的6次方121=b的三次方 x=(100b)的三次方所以x=121乘以100的三次方 即121乘以10的六次方.

x=128000x=240∴x=40√2√2表示2的立方根

解:2(x*x)+x*x*x=100 x*x+x*x*x=100/2 x*x+x*x*x=50 2(x*x)+x=50 x*x+x=25 2x+x=25 2x+x/2=25/2 x=1.25

x^3-x^2 =100x^3-x^2 -100=0f(x)=x^3-x^2 -100f(5)=0x^3-x^2 -100 = (x-5)(x^2+ax+20)coef. of x20-5a=0a=4x^3-x^2 -100 = (x-5)(x^2+4x+20)=(x-5)[(x+2)^2+16]x^3-x^2 -100=0(x-5)(x^2+4x+20)=0x=5

用计算器计算:X^3=50.90,X≈3.7060043730417806479388241828784.

X=90XX=90X=√90

用计算器计算:X^3=133,X≈5.1044687.

x=2,x=根号8,8等于2的3次方,也就是说x=2的3次方开根号,等于2.

x^x==10^100 -->x = 81.8491

网站首页 | 网站地图
All rights reserved Powered by www.wnlt.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com