1.

The value of r for which 20Cr 20C0+ 20Cr−1 20C1+ 20Cr−2 20C2+…+ 20C0 20Cr is maximum, is :

Answer»

The value of r for which 20Cr 20C0+ 20Cr1 20C1+ 20Cr2 20C2++ 20C0 20Cr is maximum, is :



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