If \( (r+1) \) th term is the first negative term in the expansion of \( (1+x)^{7 / 2} \), then ... VIDEO
If \( (r+1) \) th term is the first negative term in the expansion of \( (1+x)^{7 / 2} \), then find the value of \( r \).https://bit.ly/YTAI_PWAP https://www.pw.live
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