/x-1/+/(x-1)(x+1)/=0
ai giai giup minh voi
/x-1/+/(x-1)(x+1)/=0
ai giai giup minh voi
Tinh phan so sau:
1/3 x 1/2 - 1/5 x 1/2 (giai chi tiet)
giup minh voi, tra loi minh tick cho nha
\(\dfrac{1}{2}\times\left(\dfrac{1}{3}-\dfrac{1}{5}\right)=\dfrac{1}{2}\times\left(\dfrac{5}{15}-\dfrac{3}{15}\right)=\dfrac{1}{2}\times\dfrac{2}{15}=\dfrac{1}{15}\)
3 va 1/11 x 27 va 27/46 x 1 va 6/17 x 2 va 4/9 = .....
giai giup minh voi minh gap qua
\(3\frac{3}{11}x27\frac{27}{46}x1\frac{6}{17}x2\frac{4}{9}=\frac{34x1269x23x22}{11x46x17x9}=\frac{2x17x141x9x23x2x11}{11x23x17x9}=282\)
I x-1 I + Ix+4I = 3x ( giai giup minh voi )
Giup minh giai bai nay nha
3-x/5-x=x/x+1
Trinh bay voi nha neu dung thi minh tick
\(3-\frac{x}{5}-x=\frac{x}{x-1}\)
\(\Rightarrow\frac{15\left(x-1\right)}{5\left(x-1\right)}-\frac{x\left(x-1\right)}{5\left(x-1\right)}-\frac{5x\left(x-1\right)}{5\left(x-1\right)}=\frac{5x}{5\left(x-1\right)}\)
\(\Rightarrow15\left(x+1\right)-x\left(x-1\right)-5x\left(x-1\right)=5x\)
\(\Rightarrow15x+15-x^2+x-5x^2+5x=5x\)
Bạn tự làm tiếp theo ha
\(\frac{3-x}{5-x}=\frac{x}{x+1}\)
\(\left(3-x\right)\left(x+1\right)=\left(5-x\right)x\)
\(3\left(x+1\right)-x\left(x+1\right)=5x-x^2\)
\(3x+3-x^2-x=5x-x^2\)
\(2x+3-x^2=5x-x^2\)
\(2x+3=5x\)
\(3=5x-2x\)
\(3x=3\)
\(x=1\)
Vậy x = 1
ai giup minh giai bai nay voi:
x-1/x-3 >1
cam on nhiu:)))
mày ngu vừa thôi chó
nguyen thuy trang à
hahaha.......
éo bit học ở trường nào , lớp nào mà ngu z , bài này chắc lớp 6 cũng bit làm chứ k nói lớp 8 , chịu chị lun , bái hpucj cả độ ngu đần
a, x+1/2017 + x+2/2016 = x+3/2015 + x+4/2014
Mong cac ban giai giup minh voi
\(\frac{x+1}{2017}+\frac{x+2}{2016}=\frac{x+3}{2015}+\frac{x+4}{2014}\)
\(\Leftrightarrow\frac{x+1}{2017}+1+\frac{x+2}{2016}+1=\frac{x+3}{2015}+1+\frac{x+4}{2014}+1\)
\(\Leftrightarrow\frac{x+2018}{2017}+\frac{x+2018}{2016}-\frac{x+2018}{2015}-\frac{x+2018}{2014}=0\)
\(\Leftrightarrow\left(x+2018\right)\left(\frac{1}{2017}+\frac{1}{2016}-\frac{1}{2015}-\frac{1}{2014}\ne0\right)=0\Leftrightarrow x=-2018\)
X mu 10 = 1 mu x
Hay giup minh giai bai toan nay voi va hay giai thich nha
x10 = 1x
=> x10 = 1 (vì 1 mũ mấy cũng bằng 1)
=> x10 = 110
=> x = 1.
\(x^{10}=1^x\)
\(\Rightarrow x^{10}=1\)
\(\Rightarrow x^{10}=1^{10}\)
\(\Rightarrow x=1\)
cho day so sau:x^1+x^2=x^3+x^4=..........=x^50+x^51.Tim x^50va x^51
giup minh giai voi