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Find the coefficients: (i) x^7 in (ax^2+1/bx)^11

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asked Jun 14, 2019 by AashiK (76.2k points)

Find the coefficients:

(i) x⁷ in (ax²+1/bx)¹¹

(ii) x^-7 in (ax -1/bx²)¹¹

(iii) Find the relation between a and b, so that these coefficients are equal.

binomial theorem
jee
jee mains

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1 Answer

+1 vote

answered Jun 14, 2019 by Raees (74.4k points)
selected Jun 15, 2019 by faiz

Best answer

(i)

(iii) Given that both coefficient are equal

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