Bài 5. Tìm \(y\) biết:
a) \(\left(y+\dfrac{1}{2}\right)+\left(y+\dfrac{1}{4}\right)+\left(y+\dfrac{1}{8}\right)+\left(y+\dfrac{1}{16}\right)=1\)
b) \(\left(y+\dfrac{1}{2}\right)+\left(y+\dfrac{1}{4}\right)+\left(y+\dfrac{1}{8}\right)+...+\left(y+\dfrac{1}{1024}\right)=1\)
Tìm x,y thuộc Z biết:
a, \(\left(x+1\right)^2+\left(y+5\right)^2=16\)
b, \(\left(x+4\right)^2+\left(y-2\right)^4=5\)
c, \(|x-3|+\left(y-7\right)^2=3\)
d, \(\left(x-7\right)^4+\left(y-2\right)^2=20\)
Giải nhanh dùm mình nhé!!
Nhờ mn giúp mik với ạ
Tìm GTNN
A= \(\left(x-3y\right)^2+\left(2x-1\right)^4\)
B= \(\left|x-2\right|+\left|3x-2y\right|-4\)
C= \(\dfrac{-4}{\left|x+1\right|\left|y-3\right|+2}\)
D=\(\left|x-5\right|+\left|x-1\right|+7\)
1.Tìm x,y thuộc z:
a,\(\left|2-x\right|+2=x\)
b,\(x+7=\left|x-9\right|\)
2.Tìm x,y thuộc z:
a,\(\left|x+10\right|+\left|5-y\right|=0\)
b,\(\left|x-40\right|+\left|x-y+10\right|=0\)
c,\(\left|x+y-30\right|+\left|x-y-4\right|=0\)
d,\(\left|x+y-15\right|+\left|xy-56\right|=0\)
GIÚP MIK VS Ạ, MIK ĐANG CẦN GẤP
tìm các số tự nhiên x,y biết rằng:\(\left(2^x+1\right).\left(2^x+2\right)\left(2^x+3\right)\left(2^x+4\right)-5^y=11879\)
\(a,-\frac{2}{3}.\left(x-\frac{1}{4}\right)=\frac{1}{3}.\left(2x+1\right)\)
\(b,\frac{1}{5}.2^x+\frac{1}{3}.2^{x+1}=\frac{1}{5}.2^7+\frac{1}{3}:2^8\)
\(c,\left(x-y^2+z\right)^2+\left(y-2\right)^2+\left(z+3\right)^2=0\)
Tìm x,y sao cho
\(a.\left(x+3\right)\left(y+2\right)=1\)
\(b.\left(2x-5\right)\left(y+6\right)=17\)
\(c.\left(x-1\right)\left(x+y\right)=33\)
\(d.5x^2+6y^2=74\)
1. \(\left(1-x\right)^2+\left(3-y\right)^2+\left(y^2-x-z\right)^2=0\)
2. \(\left(x-y+z^2\right)+\left(y-2\right)^2+\left(z+3\right)^2=0\)
Làm hộ mình 2 câu này
Tìm \(x;y\in Z\)
a, \(\left(x-2\right)\left(y+3\right)=-7\)
b, \(\left(x-y\right)\left(x+y+1\right)=3\)
c, \(\left(x-2\right)\left(y+3+x\right)=5\)
d, \(x+x.y+y+3=4\)
e, \(x+x.y-y-2=3\)
g, \(\left(x-3\right)\left(x-y+4\right)=11\)
Giúp mình với ! Ai nhanh mình tich cho ! CẢM ƠN !