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ICSE Class 10 Answered

Asked by rickykumar00001 | 16 Sep, 2015, 06:14: PM
answered-by-expert Expert Answer

 

fraction numerator x squared plus x plus 1 over denominator y squared plus y plus 1 end fraction equals fraction numerator x squared minus x plus 1 over denominator y squared minus y plus 1 end fraction rightwards double arrow fraction numerator x squared plus x plus 1 over denominator x squared minus x plus 1 end fraction equals fraction numerator y squared plus y plus 1 over denominator y squared minus y plus 1 end fraction A p p l y i n g space c o m p e d e n d o space a n d space d i v i d e n d o comma space w e space g e t fraction numerator 2 x squared plus 2 over denominator 2 x end fraction equals fraction numerator 2 y squared plus 2 over denominator 2 y end fraction rightwards double arrow open parentheses x squared plus 1 close parentheses y equals open parentheses y squared plus 1 close parentheses x rightwards double arrow x squared y plus y equals y squared x plus x rightwards double arrow x squared y minus y squared x plus y minus x equals 0 rightwards double arrow x y open parentheses x minus y close parentheses minus open parentheses x minus y close parentheses equals 0 rightwards double arrow open parentheses x minus y close parentheses open parentheses x y minus 1 close parentheses equals 0 S i n c e comma space x not equal to y comma space x y minus 1 equals 0 rightwards double arrow x y equals 1

Answered by | 16 Sep, 2015, 06:24: PM

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