Hiệu là \(957\times2=1914\)

Số lớn là \(\dfrac{2114+1914}{2}=2014\)

Số bé là \(2114-2014=100\)

\(\Leftrightarrow x^2-1=\sqrt{x^2+1}\\ \Leftrightarrow x^4-2x^2+1=x^2+1\\ \Leftrightarrow x^4-3x^2=0\\ \Leftrightarrow x^2\left(x^2-3\right)=0\\ \Rightarrow\left[{}\begin{matrix}x=0\left(l\right)\\x=\sqrt{3}\left(n\right)\\x=-\sqrt{3}\left(n\right)\end{matrix}\right.\)

Vậy \(S=\left\{\pm\sqrt{3}\right\}\)

Kkk helppp.

Ủa alo donate gòi dc j khum bạn?

yea

\(=4\cdot5+\dfrac{\sqrt{194}}{7}=20+\dfrac{\sqrt{194}}{7}=\dfrac{140+\sqrt{194}}{7}\)