7-x5+3x≥1

7/6x（1/4-1/3）x5/16x5/37/6x（1/4-1/3）x5/16x5/3=7/6×(-1/12)×25/48=-175/3456

7分之1×()=()x5分之3=()×0.4=30x()=17分之1×()=()x5分之3=()×0.4=30x()=1我来0.0.0.0

1x5+2x5+3x5+4x5+5x5…麻烦给我一个公式.1*5+2*5+...+n*5=(1+2+...+n)*5=n(n+1)*5/2

已知x2-3x+1=0,则x5+1/x5的值为多少原等式变形得：x＋1／x=3∴﹙x＋1／x﹚²=3²∴x²＋1／x²=7∴﹙x²＋1／x²﹚²=7²∴x^4＋

2/3x【】=【】x5=0.5x【】=12/3x3/2=1/5x5=0.5x2=1

(-3)x5/6x(-9/5)x(-1/4)计算=-5/2X9/5X1/4=-9/2X1/4=-9/8结果是-9/8

x5+x+1怎么因式分解X5+X+1=X5-X4+X4-X3+X3-X2+X2+X+1=X4(X-1)+X3(X-1)+X2(X-1)+X2+X+1=X2(X-1)(X2+X+1)+(X2+X+1)=(X2+X+1)(X3-X2+1)；注意

x5+x+1怎么解这应该是一个等式

3/2x5/7-(-5/7)x5/2+(-1/2)除以7/5等于多少,3/2x5/7-(-5/7)x5/2+(-1/2)除以7/5=3/2*5/7+5/7*5/2-1/2*5/7=5/7*（3/2+5/2-1/2）=5/7*7/2=5/2=

(32+x分之3)x5=1怎么解(32+3/x)*5=132+3/x=1/5160x+15=x159x=-15x=-15/159经检验,x=-15/159是原方程的根所以,原方程的解是x=-15/159..(32+3/x)*5=1160+1

()X36=25%X()=()X5分之3=11/36X36=25%X4=5/3X3/5=1

（-6）X（丨/2-1/3x5/11） 

简便计算1.5x5/8+7x5/8=?2.3/4x5/7-3/4x1/7=?3.7/8x3/17x5/7=?4.11/19x2/7x5/11没分给对不起啊、、1.5x5/8+7x5/8=5/8x(5+7)=12x5/8=15/22.3/4x

（2）编一个函数过程Mysin(x),求Mysin(x)=x/1-x3/3!+x5/5!-x7/7!+…+(-1)n-1*x2*n-1/(2*n-1)!.当第n项的值小于10-5时结束,x为弧度.主调程序同时调用Mysin和标准函数sin,

不等式问题:正实数x,y,z满足xyz≥1,证明(x5-x2)/(x5+y2+z2)+(y5-y2)/(y5+z2+x2)+(z5-z2)/(z5+x2+y2)≥0字母右边的数字是指数,应该是用柯西不等式的(x^5-x^2)/(x^5+y^

解方程:3/x+6/x-1=5/x^2-x5/x=7/x-2(x-1/x+1)-(4/x^2-1)=1填空:当x=______时,分时3/x^2-1有意义分式0.01x-0.5y/2x+0.03y化为整系数为_________.分式x^2-

解方程：25-（1/2+1/3）x=55x-3X5/21=5/725-（1/2+1/3）x=525-5/6x=5150-5x=305x=120x=245x-3X5/21=5/75x-5/7=5/75x=0x=0到底解哪道20=(1/6)xx

sin(x)=x-x3/3!+x5/5!-x7/7!+……+(-1)nx2n+1/(2n+1)!+……编程并计算sin(x)的值,求找错.sin(x)=x-x3/3!+x5/5!-x7/7!+……+(-1)nx2n+1/(2n+1)!+……

计算sin(x)=x-x3/3!+x5/5!-x7/7!+……直到最后一项的绝对值小于10-7.要求：(1)用do-while完成.(2)调试程序并验证程序的正确性.#include#includeintmain(intargc,char*

3.4X5.3+5.9X4.7+2.5X5.33.4X5.3+5.9X4.7+2.5X5.3=3.4X5.3+2.5X5.3+5.9X4.7=(3.4+2.5)X5.3+5.9X4.7=5.9X5.3+5.9X4.7=(5.3+4.7)X5