if the coefficient of x to the power 7 in (ax+1/bx*x) and the coefficient of x to the power -7 in (ax-1/bx*x) are equal then show ab =1

Asked by SHRUTI GUPTA | 19th Oct, 2013, 05:41: PM

Expert Answer:

Answered by  | 19th Oct, 2013, 06:26: PM

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