Solved find the Binomial expansion of (x-3/x)^5

Introduction : Here we shall find Binomial expansion of (x-3/x)^5.Step by step solution is provided below Question : Find the Binomial expansion of \[\left(x-\frac{3}{x}\right)^5\] Solution : We know Binomial expansion formula \[\left(X+Y\right)^n=\sum_{k=0}^{n}\binom{n}{k}\left(X\right)^{n-k}\left(Y\right)^k\] where \[\binom{n}{k}=nC_k=\frac{n!}{n!\left(n-k\right)!}\] Now we shall substitute here \[X…

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