Simplify the expression \(\sqrt{7!}\), where n! stands for \(n\cdot(n-1)\cdot(n-2)\cdots \cdot 2\cdot 1\)
sqrt ( 7 x 6 x 5 x 4 x 3 x 2)
2 sqrt ( 7 x 3x2 x 5 x 3 x 2)
4 sqrt (7 x 3 x 5 x 3)
12 sqrt (7 x 5)
12 sqrt 35
+36916 
