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ICSE Class 8 Answered

2a-1/2a=3, find: 8a(cube) - 1/8a(cube)
Asked by Manasvi | 21 Aug, 2018, 12:06: PM
answered-by-expert Expert Answer
begin mathsize 18px style 2 straight a minus fraction numerator 1 over denominator 2 straight a end fraction equals 3 8 straight a cubed minus fraction numerator 1 over denominator 8 straight a cubed end fraction equals open parentheses 2 straight a close parentheses cubed minus fraction numerator begin display style 1 end style over denominator begin display style open parentheses 2 straight a close parentheses cubed end style end fraction equals open parentheses 2 straight a minus fraction numerator begin display style 1 end style over denominator begin display style 2 straight a end style end fraction close parentheses cubed plus 3 open parentheses 2 straight a minus fraction numerator begin display style 1 end style over denominator begin display style 2 straight a end style end fraction close parentheses equals 3 cubed plus 3 cross times 3 equals 36 end style
Answered by Arun | 21 Aug, 2018, 01:12: PM

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