3x-0.25+1.25=1.
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x+25%x=3.75用解方程算出來x+0.25x=3.75 1.25x=3.75 x=3.75/(乘)1.25 x=3
3x-0.25+1.25=1.
已知x=2π+1.求(X-1)+(X-2)+(X-3)+(X-4)+(X-5)+(X-6)+(X-7)+(X-8)+(X-9)+(X-10)
1.x/9+x=62.x/x+1 + x+1/2x = 3
f(x)=x+1.当x≥3,f(x)=4-x,当x
1.(1/X-1 )-2=X^-3X/X^-12.(X/X+1)^+5(X/X+1)+6=03.(8(X^+2X)/X^-1)+ 3(X^-1)/X^+2x
不要检验!1.x+1/x-1 - 3x-3/x+1 = 22.7/x^2+x + 3/x^2-x = 6/x^2-1
1.f(x)=3|x| 2.f(x)=x+9/x 求单调区间
3/(7X)+4/7(1.25X)=1/X
1.(x*2-3x+3)/(x*2-3x+2)-(x*2-5x+7)/(x*2-5x+6)-1/(x*2-4x+3)2.1/x(x+1)+2/(x+1)(x+3)+3/(x+3)(x+6) 3.已知:x*2-3x+1=0,求x*2+1/x*2.
用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
X—0.25X+3=80%X怎么算?
解方程 x-0.25x=3
x-0.25x=3求解
(X+3)/7=X/6+0.25
因式分解f(x)=x^6+2x^3+1.
x/2(根号3x-根号2x)=-1.
下列式子求导1.f(x)=x^3-3x^2+3x-22.g(x)=-3x^3+5x^2-4x+113.u(x)=-x^3+27x+74.h(x)=42-45x-3x^2+3x^35.f(x)=Lnx+x6.g(x)=x/(2+x^2)