(6√x/4-2x√1/x)÷3√x 化简
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(6√x/4-2x√1/x)÷3√x化简(6√x/4-2x√1/x)÷3√x化简(6√x/4-2x√1/x)÷3√x化简原式=(3/2根号X-2根号X)乘以1/(3根号X)=(3/1-4/2)根号X乘
(6√x/4-2x√1/x)÷3√x 化简
(6√x/4-2x√1/x)÷3√x 化简
(6√x/4-2x√1/x)÷3√x 化简
原式=(3/2根号X-2根号X)乘以1/(3根号X)
=(3/1-4/2)根号X乘以1/(3根号X)
=-根号X/2乘以1/(3根号X).(根号X相约)
=-1/6
(6√x/4-2x√1/x)÷3√x 化简
xy²/(x²y-y) × x²/(x²+x)=(x²-3x)/(x²-5x) × 2x-10/(x²-6x+9)=化简求植x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1
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2/3x√9x-(x^2√1/x-6x√4/x)
已知x=√2+1,求(x²+x-6)/(3-x)×(2x-6)/(x²-4x+4)÷(x+3)求快速回答啊
1、lim(x->无穷大) e^x arctanx2、lim(x->0)sinx√1+sin(1/x)3、lim(x->无穷大)【(√x^2+x+1)-【(√x^2-x+1)】4、lim(x->无穷大)((x+{x+(x)^0.5]^0.5}^0.5)/(2x+1)^0.55、lim(x->0)(sin3x+x^2sin1/x)/((1+cosx)x)6、lim(n->无穷大)(2^n)(si
已知1/√(x)+√(x)=√5,求√(x/x2+x+1)+√(x/x2-x+1)的值定义域 x>0,两边平方,x+2+1/x=5,x+1/x=3,x^2-3x+1=0,x^2+x+1-4x=0,x^2+x+1=4x,x^2-x+1-2x=0.x^2-x+1=2x,√[x/(x^2+x+1)]-√[x/(x^2-x+1)]=√[x/(4x)]-√[x/2x]=√(1/4)-√(1/2)
已知:√x=√a+1/√a求(x2+x-6)/x÷(x+3)/(x2-2x)-[(x-2)+√(x2-4x)]/[(x-2)-√(x2-4x)]的值
解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1
若x=√2,求代数式[(x^2-2x+4)/(√x^2-4x+4)]/[(x^3+8)/(x^2-4)]*[|6-x|/(x^2-5x-6)-[1/(x^2-x+1)]^-1的值
化简:[√(x^2-6x+9)/x^2-x-12]*(x^3-16x)/(x^2-3x)-1/(x+3) {x>3}
化简求值:x/x²+x×(x-2x+1/x+2),其中x=2√3-2谢谢了,
(4)2/3X√9x-(x²√1/x-6x√x/4)
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
化简求值:(x-4/x²-1)/(x²-3x-4/x²+2x+1)+(1/x-1),其中,x=2*√3-1
1、x^2+10x+21=02、x^2-x-1=03、3x^2+6x-4=04、3x(x+1)=3x+35、4x^2-4x+1=x^2+6x+96、7x^2-√6x-5=0
xy²/(x²y) - y×x²/(x²+x)=(x²-3x)/(x²-5x×2x) - 10/(x²-6x+9)=2a/(a²-4) - 1/(a-2)=2/(1-a ) - 1/(a-1)=x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1
帮个忙 求你们了 急用xy²/(x²y-y) × x²/(x²+x)=(x²-3x)/(x²-5x) × 2x-10/(x²-6x+9)=化简求植x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1