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Home / Doubts and Solutions/JEE/Biology

ques no 17

Asked by chandanbr6004 26th November 2017, 11:37 AM
Answered by Expert
Answer:
begin mathsize 16px style now space coeff space of space straight x to the power of straight k space in space any space expansion space is space given space by space straight C presuperscript straight n subscript straight k from space left parenthesis 1 plus straight x right parenthesis to the power of straight k........... straight C presuperscript straight k subscript straight k from space left parenthesis 1 plus straight x right parenthesis to the power of straight k plus 1 end exponent........... straight C presuperscript straight k plus 1 end presuperscript subscript straight k from space left parenthesis 1 plus straight x right parenthesis to the power of straight k plus 2 end exponent........... straight C presuperscript straight k plus 2 end presuperscript subscript straight k from space left parenthesis 1 plus straight x right parenthesis to the power of straight n........... straight C presuperscript straight n subscript straight k so space coeff space of space straight x to the power of straight k space will space be space sum from straight r equals straight k to straight n of straight C presuperscript straight r subscript straight k equals straight C presuperscript straight n plus 1 end presuperscript subscript straight k plus 1 end subscript end style
Answered by Expert 27th November 2017, 12:05 PM
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