Question

If $\left|\begin{array}{ccc}1& -1& x\\ 1& x& 1\\ x& -1& 1\end{array}\right|$ has no inverse, then the real value of x is :

• A. 2
• B. 3
• C. 0
• D. 1

Answer 1

Answer: (D)

Correct answer is (d) 1