Friday, 10 March 2023

Differentiating cos^-1(x-x^-1)/(x+x^-1) with respect to x.


 

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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)!