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Question:
If ${ }^{n+1} C_{3}=2\left({ }^{n} C_{2}\right)$, find the value of $n .$
Solution:
Given: ${ }^{n+1} C_{3}=2\left({ }^{n} C_{2}\right)$ Need to find: Value of $n \Rightarrow{ }^{n+1} C_{3}=$
