SOLUTION: How do i find the coefficient of x^2 in the expansion of (x+(1/x))^20 ?

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Question 761834: How do i find the coefficient of x^2 in the expansion of (x+(1/x))^20 ?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
%28x%2B1%2Fx%29%5E20......multiply to expend


so, the coefficient of x%5E2 is 167960