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Friday, February 8, 2013

Problem solving 3


Tentukan nilai dari


penyelesaian:
ingat!!!
n! = n(n - 1)(n - 2)(n - 3)....3.2.1
100! = 100.99...3.2.1

sehingga:

= 100!log 2 + 100!log 3 + 100!log 4 + .... + 100!log 100
= 100!log 2.3.4....100
= 100!log 100!
= 1



xixixixi....
ternyata mudah ya :)

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