ICSE Class 10 Answered

Asked by Topperlearning User | 14 Sep, 2017, 10:11: AM

Expert Answer

$begin mathsize 12px style fraction numerator straight a over denominator straight b space plus space straight c end fraction space equals space fraction numerator straight b over denominator straight c space plus space straight a end fraction equals space fraction numerator straight c over denominator straight a space plus space straight b end fraction space equals space fraction numerator open parentheses straight a space plus space straight b space plus space straight c close parentheses over denominator 2 space open parentheses straight a space plus space straight b space plus space straight c close parentheses end fraction equals 1 half space space space if space open parentheses straight a space plus space straight b space plus space straight c close parentheses space not equal to 0 If space open parentheses straight a space plus space straight b space plus space straight c close parentheses space equals space 0 space then fraction numerator straight a over denominator straight b space plus thin space straight c space end fraction space equals space fraction numerator straight a over denominator negative straight a end fraction space equals space minus 1 Also comma space fraction numerator begin display style straight b end style over denominator begin display style straight c space plus thin space straight a space end style end fraction space equals space fraction numerator straight b over denominator negative straight b end fraction equals space minus 1 And space fraction numerator straight c over denominator straight a space plus space straight b end fraction space equals space fraction numerator straight c over denominator negative straight c end fraction space equals space minus 1 So comma space each space ratio space fraction numerator 1 over denominator 2 space end fraction space or space minus 1 end style$