ICSE Class 10 Answered
If( 11a^2+13b^2)/(11c^2+13d^2) = (11a^2-13b^2)/(11c^2-13d^2),prove that a,b,c and d are proportional.
Asked by nitinkumarsingh.singh.75 | 05 Aug, 2015, 01:10: PM
Expert Answer
Answered by Vimala Ramamurthy | 05 Aug, 2015, 06:26: PM
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