xác định hàm số a, \(y=\sqrt{x^2+x-4}\)b , \(y=\frac{1}{x^2+1}\)c, y= l 2x - 3 l d , \(y=\frac{1}{x^2-3x}\)e , \(y=\sqrt{1-x}+\frac{1}{x\sqrt{1}+x}\)f , \(y=\frac{2x-1}{\sqrt{x\sqrt{\left(x-4\right)}}}\)g , \(y=\sqrt{3+x}+\frac{1}{x^2-1}\)h...
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xác định hàm số
a, \(y=\sqrt{x^2+x-4}\)
b , \(y=\frac{1}{x^2+1}\)
c, y= l 2x - 3 l
d , \(y=\frac{1}{x^2-3x}\)
e , \(y=\sqrt{1-x}+\frac{1}{x\sqrt{1}+x}\)
f , \(y=\frac{2x-1}{\sqrt{x\sqrt{\left(x-4\right)}}}\)
g , \(y=\sqrt{3+x}+\frac{1}{x^2-1}\)
h , \(y=\frac{1}{\sqrt{2x^2-4x+4}}\)
i, \(y=\sqrt{6-x}+2x\sqrt{2x+1}\)
j, \(y=\frac{x^2+1}{\sqrt{2-5}}+x\sqrt{1+x}\)
k, \(y=\frac{1}{x^2+3x+3}+\left(x+2\right)\sqrt{x+3}\)
l, \(y=\sqrt[3]{\frac{3x+5}{x^2-1}}\)
