Q92
The determinant \[ | array*20c 1 + b& b&1 \\ b&1 + b&1 \\ 2&2 b&1 array |\] equals to
The determinant \left| {\begin{array}{*{20}{c}}
{1 + {\text{b}}}&{\text{b}}&1 \\
{\text{b}}&{1 + {\text{b}}}&1 \\
2&{2{\text{b}}}&1
\end{array}} \right| equals to
A.
0
AnswerB.
2b(b - 1)
C.
2(1 - b) (1 + 2b)
D.
3b(1 + b)
Answer: Option A
Solution
Answer: Option A
No explanation is given for this question Let's Discuss on Board