find the value of α for which A2 = B, is

Question

If $A=\left[\begin{array}{cc}\alpha & 0\\ 1& 1\end{array}\right]$  and $B=\left[\begin{array}{cc}1& 0\\ 5& 1\end{array}\right]$  then value of $\alpha$ for which  A²=B ,  is 

A) 1

B)-1 

c) 0

d) no real value

Answer 1

The correct answer is option d) no real value

Explanation::