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In the expansionof (y^3+a^7/y^5)^10,Does there exist a term independent of y in the above expansion? |
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Answer» SOLUTION :LET (r+1)th term is independent of y. THEREFORE `y^(30-8r)` = 1 = `y^0` or, 30-8r = 0 or, r = 30/8 = 15/4 which is not possible as `RIN N` or zero. therefore There is no term in the expansion of `(y^3+a^7/y^5)^10` which is independent of y. |
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