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CBSE Class 12-science Answered

How to solve the questions of pratial fraction having power of 'x' in numerator greater than the power of 'x' in denominator?
Plz explain with examples for better understanding.
Asked by Jahanvi | 21 Feb, 2016, 09:34: AM
answered-by-expert Expert Answer
begin mathsize 11px style When space the space power space of space numerator space is space greater space than space the space power space of space denominator comma space we space do space not space use space partial space fraction. Instead comma space we space simply space divide space the space numerator space by space denominator space by space long space division space method. space fraction numerator straight N left parenthesis straight x right parenthesis over denominator straight D left parenthesis straight x right parenthesis end fraction equals straight Q left parenthesis straight x right parenthesis plus fraction numerator straight R left parenthesis straight x right parenthesis over denominator straight D left parenthesis straight x right parenthesis end fraction Suppose space the space fraction space is space fraction numerator straight x cubed minus 1 over denominator straight x plus 1 end fraction Using space long space division space method comma space fraction numerator straight x cubed minus 1 over denominator straight x plus 1 end fraction equals open parentheses straight x squared minus straight x plus 1 close parentheses minus fraction numerator 2 over denominator straight x plus 1 end fraction Hope space this space helps. end style
Answered by satyajit samal | 22 Feb, 2016, 12:02: PM
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