Find the coefficient of x^n−2 in the equation (x−1)(x−2)(x−3)⋯(x−n)
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manjunadha040179:
but answer is wrong
while multiplication of n factors x^n-(sum of roots taken one at a time) x^n-1+(sum of product of two roots at a time) x^n-2- and so on
what is the answer
coefficient of x^n-2 in f(x)=(1.2+1.3+.....)=sum of product of frist n naural numbers taken 2 at time can you explain this statement
answer is n(n-1)(n+1)(3n+2)/24
it is not sum of product of n natural numbers. it is only a product of 1 with natural numbers
yes
i will send you process can you explain
i think the answer you send is not correct
it is croccet
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