A) \[2\left( x! \right)\left( x4-1 \right)!\]
B) \[2\left( x! \right)\left( x4-1 \right)!\left( x+2 \right)!\]
C) \[2\left( x! \right)\left( x+3 \right)!\]
D) None of these
Correct Answer: B
Solution :
[b]: Applying \[{{R}_{1}}\to {{R}_{2}}-{{R}_{1}},{{R}_{2}}\to {{R}_{3}}-{{R}_{2}}\] we get \[=2(x!)(x+1)!(x+2)!\](Expanding along \[{{C}_{1}}\]).You need to login to perform this action.
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