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# Coefficient of polynomial

$(1+x)(1+x)(1+x^2)(1+x^2)(1+x^3)(1+x^3) \cdots (1+x^{99})(1+x^{99}) \cdots$

a) what is the coefficient of $$x^{180}$$?

b)what is the coefficient of $$x^{m}$$?

Note by Sudeepto Saha
11 months, 1 week ago