Wednesday, 8 April 2026

Find x , if 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)!
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Check whether 7+3x is a factor of 3x^3+7x ? [ncert]

                               Now take 7+3x=0 =>3x= -7 => x= -7/3 => If p(x)=3x^3+7x , then, => p(-7/3) = 3(-7/3)^3+7(-7/3) =...