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Find the coefficient of x^(15) in the ex...

Find the coefficient of `x^(15)` in the expansion of `(x - x^(2))^(10)`

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To find the coefficient of \( x^{15} \) in the expansion of \( (x - x^2)^{10} \), we can follow these steps: ### Step-by-Step Solution: 1. **Identify the General Term**: The general term \( T_{r+1} \) in the binomial expansion of \( (a + b)^n \) is given by: \[ T_{r+1} = \binom{n}{r} a^{n-r} b^r ...
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