1.

The statement P(n): ' '1 xx 1! + 2 xx2! + 3 xx 3! + ... +n xx Xn! = (n + 1)!-1 ' ' is

Answer»

TRUEFOR all ` N gt 1`
nottruefor anyn
TRUE for alln ` in ` N
Noneof these

Answer :C


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