If the coefficient of \(x^7\) in \(\left(a x-\frac{1}{b x^2}\right)^{13}\) and the coefficient o....

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If the coefficient of \(x^7\) in \(\left(a x-\frac{1}{b x^2}\right)^{13}\) and the coefficient of \(x^{-5}\) in \(\left(a x+\frac{1}{b x^2}\right)^{13}\) are equal, then \(a^4 b^4\) is equal to............ 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live



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