Tính x=\(\frac{1}{3}\left(\sqrt[3]{\frac{23+\sqrt{513}}{4}}+\sqrt[3]{\frac{23-\sqrt{513}}{4}}-1\right)\)
Tính x= \(\frac{1}{3}\left(\sqrt[3]{\frac{23+\sqrt{513}}{4}}+\sqrt[3]{\frac{23-\sqrt{513}}{4}}-1\right)\)
Cho x = \(\frac{1}{3}\left(\sqrt[3]{\frac{23+\sqrt{513}}{4}}+\sqrt[3]{\frac{23-\sqrt{513}}{4}}-1\right)\)
Tính A = \(\left(2x^3+2x+1\right)^{10}\)
Tính A=\(2x^3+2x^2+1\)
biết x=\(\frac{1}{3}\left(\sqrt[3]{\frac{23+\sqrt{513}}{4}}+\sqrt[3]{\frac{23-\sqrt{513}}{4}}-1\right)\)
Tính \(A=2x^3+2x^2+1\)với \(x=\frac{1}{3}\left(\sqrt[3]{\frac{23+\sqrt{513}}{4}}+\sqrt[3]{\frac{23-\sqrt{513}}{4}-1}\right)\)
Tính \(A=2x^3+2x^2+1\). Với:
\(x=\frac{1}{3}\left(\sqrt[3]{\frac{23+\sqrt{513}}{4}}+\sqrt[3]{\frac{23+\sqrt{513}}{4}}-1\right)\)
Tính:
\(A=2x^3+2x^2+1\)
với \(x=\frac{1}{3}\left( \sqrt[3]{\frac{23+\sqrt{513}}{4}}+\sqrt[3]{\frac{23-\sqrt{513}}{4}}\right)-1\)
Câu 1 :
Cho \(P=\left(1+\frac{\sqrt{x}}{x+1}\right):\left(\frac{1}{\sqrt{x}-1}-\frac{2\sqrt{x}}{x\sqrt{x}+\sqrt{x}-x-1}\right)\)
a) Rút gọn P
b) Tìm x để P < 2
Câu 2 :
Tính \(A=2x^3+2x^2+1\)
Với \(x=\frac{1}{3}\left(\sqrt[3]{\frac{23+\sqrt{513}}{4}+\sqrt[3]{\frac{23-\sqrt{513}}{4}-1}}\right)\)
Hãy tính\(A=2x^3+2x^2+1\)
với \(x = \frac{1}{3}( \sqrt[3]{\frac{23+\sqrt{513}}{4}} +\sqrt[3]{\frac{23-\sqrt{513}}{4}}-1 ) \)