JEE Main Mathematics question
If , then \left({}^nC_0\right)^2+\left({}^nC_1\right)^2+\left({}^nC_2\right)^2+\ldots+\left({}^nC_5\right)^2 is equal to
Answer: (D)
Solution
By Vandermonde's identity, . For this is . , option (D).
If , then \left({}^nC_0\right)^2+\left({}^nC_1\right)^2+\left({}^nC_2\right)^2+\ldots+\left({}^nC_5\right)^2 is equal to
By Vandermonde's identity, . For this is . , option (D).