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Let alpha=l tsum(r=1)^(r-n)1/(r(r+1)) be...

Let `alpha=l tsum_(r=1)^(r-n)1/(r(r+1))` be root of `a x^2+b x+c=0,b ,c` are rational. The other root can be rational or irrational.

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RESONANCE DPP ENGLISH-JEE MAINS-All Questions
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