Saturday, 11 October 2025

Solve the following equation for x correct to 2 decimal places, 4x²-5x-3=0 [ICSE 2017].

 










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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)!