Sunday, 5 October 2025

Solve x/a + y/b = 2 ax - by = a ^ 2 - b ^ 2 [CBSE.10th 2005 ]


 

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If find x. 1/(9!) + 1/(10!) = x/(11!).

  Here n! is read as n factorial. It can be written as n(n-1)! or n(n-1)(n-1)!