\(\left(2x-5\right)^{2000}\ge0;\left(3y-4\right)^{2002}\ge0\)
Mà \(\left(2x-5\right)^{2000}+\left(3y-4\right)^{2002}\le0\)
suy ra \(\left(2x-5\right)^{2000}+\left(3y-4\right)^{2002}=0\)
\(\Leftrightarrow\) (2x - 5)2000 = 0 và (3y - 4)2002 = 0
\(\Leftrightarrow\) 2x - 5 = 0 và 3y - 4 = 0
\(\Leftrightarrow\) 2x = 5 và 3y = 4
\(\Leftrightarrow\) x = \(\frac{5}{2}\) và y = \(\frac{4}{3}\)
Tìm x, y biết:
\(\left(2x-5\right)^{2000}+\left(3y+4\right)^{2002}\le0\)
tìm x; y
\(\left(2x-5\right)^{2000}+\left(3y+4\right)^{2002}\le0\)
tìm x;y biết:\(\left(2x-5\right)^{2000}+\left(3y+4\right)^{2002}\)< 0
Tìm x , y biết:
\(\left(2x-5\right)^{2016}+\left(3y+4\right)^{2020}\le0\)
tìm x,y biết:
a)\(\left(2x-5\right)^{2000}+\left(3y+4\right)^{2002}\le0\)
b)\(x=6:\frac{1}{3}-0,8:\frac{1,5}{\frac{3}{2}.0,4.\frac{50}{1:\frac{1}{2}}}+\frac{1}{4}+\frac{1+\frac{1}{2}.\frac{1}{0,25}}{6-\frac{46}{1+2,2.10}}\)
c)\(y=77^{-1}.7^4.11^2.\left(1.11\right)^4.\left(7^2\right)^{-8}.\left(7^{-8}\right)^{-3}.\frac{1}{\left(-11\right)^{-3}}\)
Tìm x, biết:
\(\left(2x-5\right)^4+\left(3y+1\right)^6\le0\)
1.Tính
A= $$
B=\(1-\frac{1}{1-2^{-1}}+\frac{1}{1+\frac{1}{2^{-1}}}\)
2. Tìm x, biết:
a) \(\left(2x-3\right)^2=36\)
b) \(\left(2x-1\right)^5=243\)
c) \(\left(7x+2\right)^{-1}=3^{-2}\)
d) \(\left(2x-5\right)^{2000}+\left(3y+4\right)^{2002}\le0\)
1.Tính
A= \(\frac{4^6.9^5+6^9.120}{-8^4.3^{12}-6^{11}}\)
B=\(1-\frac{1}{1-2^{-1}}+\frac{1}{1+\frac{1}{2^{-1}}}\)
2. Tìm x, biết:
a) \(\left(2x-3\right)^2=36\)
b) \(\left(2x-1\right)^5=243\)
c) \(\left(7x+2\right)^{-1}=3^{-2}\)
d) \(\left(2x-5\right)^{2000}+\left(3y+4\right)^{2002}\le0\)
Tìm đa thức M biết rằng: \(M+\left(5x^2-2xy\right)=6x^2+9xy-y^2.\) .Tính giá trị của M khi x, y thõa mãn: \(\left(2x-5\right)^{2018}+\left(3y+4\right)^{2020}\le0\)
