Friday, 8 November 2024

To find the equation of a straight line in terms of the length of perpendicular from the origin upon it and an angle which the perpendicular makes with positive direction of X-axis.



 

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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)!