JEE Math Practice Question
The coefficient of x101 in the expression $${(5 + x)^{500}} + x{(5 + x)^{499}} + {x^2}{(5 + x)^{498}} + \,\,.....\,\, + \,\,{x^{500}}$$, x > 0, is
- A.501C101 (5)399
- B.501C101 (5)400
- C.501C100 (5)400
- D.500C101 (5)399
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