giải các pt
a,[tex]\sqrt{1-\sqrt{2x-x^2}}+\sqrt{1+\sqrt{2x-x^2}}=\frac{2}{lx-1l}[/tex]
b, [tex]2x+\sqrt{1+x^2} =\sqrt{\frac{(1+x^2)^3}{1-x^2}}[/tex]
c, ,[tex]64x^3 -112x^2 +56x-7=2\sqrt{1-x}[/tex]
d,,[tex]\sqrt{2-2\sqrt{1-x^2}}=x(1+\sqrt{1-x^2})[/tex]
e, ,,[tex]\sqrt{1+\sqrt{1-x^2}}=x(1+2\sqrt{1-x^2})[/tex]
f, ,,[tex]\sqrt{1+\sqrt{1-x^2}}[\sqrt{(1+x)^3-sqrt{(1-x)^3}}]=\frac{2}{\sqrt{3}}[/tex]
g,[tex]\sqrt{1-2x}+\sqrt{1+2x}=\sqrt{\frac{1-2x}{1+2x}}+\sqrt{\frac{1+2x}{1-2x}}[/tex]
h, [tex]x^3 - 3\sqrt{3} x^2-3x+\sqrt{3}=0[/tex]
i, [tex]\sqrt{1+x^2} +\frac{x^2+1}{2x}=\frac{(x^2 +1)^2}{2x(1-x^2})[/tex]