tìm x,y biết:
a) \(x^2+\left(y-\dfrac{1}{10}\right)^4=0\)
b) \(\left(\dfrac{1}{2}.x-5\right)^{20}+\left(y^2-\dfrac{1}{4}\right)^{10}\le0\)
Tìm x biết:
\(\dfrac{1}{3}+\dfrac{1}{6}+\dfrac{1}{10}+\dfrac{1}{15}+...+\dfrac{1}{x\left(2x+1\right)}=\dfrac{1}{10},\left(x\inℕ^∗\right)\)
Giải chi tiết giúp mik nha.
Tìm x
\(a,3-x=x+1,8\)
\(b,2x-5=7x+35\)
\(c,2\left(x+10\right)=3\left(x-6\right)\)
\(d,8\left(x-\dfrac{3}{8}\right)+1=6\left(\dfrac{1}{6}+x\right)+x\)
\(e,\dfrac{2}{9}-3x=\dfrac{4}{3}-x\)
\(g,\dfrac{1}{2}x+\dfrac{5}{6}=\dfrac{3}{4}x-\dfrac{1}{2}\)
\(h,x-4=\dfrac{5}{6}\left(6-\dfrac{6}{5}x\right)\)
\(k,7x^2-11=6x^2-2\)
\(m,5\left(x+3.2^3\right)=10^2\)
\(n,\dfrac{4}{9}-(\dfrac{1}{6^2})=\dfrac{2}{3}\left(x-\dfrac{2}{3}\right)^2+\dfrac{5}{12}\)
Tìm x:
1) \(\text{(x−1):0,16=−9:(1−x)}\)
2) \(\left(\left|x\right|-\dfrac{3}{2}\right)\left(2x^2-10\right)=0\)
3)\(8\sqrt{x}=x^2\left(x\ge0\right)\)
Tìm x, biết:
a) \(\left(-\dfrac{5}{9}\right)^{10}\) : x = \(\left(\dfrac{-5}{9}\right)^8\)
b) x ; \(\left(\dfrac{-5}{9}\right)^8\) = \(\left(\dfrac{-9}{5}\right)^8\)
c) x3 = -8
tìm x biết \(\left|x-\dfrac{1}{3}\right|+\left|x-\dfrac{1}{15}\right|+\left|x-\dfrac{1}{35}\right|+\left|x-\dfrac{1}{63}\right|+...+\left|x-\dfrac{1}{399}\right|=-11x\)
\(\dfrac{3}{4}+\dfrac{1}{4}:x=-2\dfrac{1}{2}\)
\(\left(\dfrac{2}{3}\right)^{100}:x=\left(\dfrac{-2}{3}\right)^{98}\)
\(\dfrac{3}{2}:\left|4x-\dfrac{1}{5}\right|=\dfrac{3}{4}\)
Tìm giá trị lớn nhất hoặc giá trị nhỏ nhất
\(A=\dfrac{2022}{\left|x\right|+2003}\)
\(B=\left(\left|x\right|+1\right)^{10}+2009\)
Tìm x, biết:
\(\)|x+\(\dfrac{1}{2}\)|+|x+\(\dfrac{1}{6}\)|+\(\left|x+\dfrac{1}{12}\right|\)+\(\left|x+\dfrac{1}{20}\right|\)+...+\(\left|x+\dfrac{1}{110}\right|\)=11x
Tìm \(\left(x\right)\):
a) \(\left(x-\dfrac{1}{2}\right)^2\):\(\dfrac{2}{9}\) =\(\left(-1\dfrac{1}{3}\right)\):\(\left(\dfrac{1}{2}-x\right)\)
b) \(\dfrac{3.x-1}{4}\)=\(\dfrac{2.x-5}{3}\)
c) \(\dfrac{3}{-2}\)=\(\dfrac{x-3}{3.x+1}\)
Cú tui mấy ông bà ơi:)) Làm dc thì làm giúp tui nhen, cảm ơn nè