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Topic: Re: help me in this discrete math
Replies: 0

 Angela Richardson Posts: 42 From: UK Registered: 6/22/11
Re: help me in this discrete math
Posted: Nov 17, 2011 1:09 PM

a^na=(a^n)^a

8^2001=8.64^1000
65^1000=64^1000+1000.64^999...>8^2001

79^10>10^17 (I did end up using a calculator)
9^44<10^41
79^1212>10^2290
9^2399<10^2285
79^1212>9^2399

5^8192=25^4096
24^8>10^11
25^5<10^7
24^4493>10^6177
25^4096<10^5735
24^4493>25^4096

So all 3 are >0.

----- Original Message ----
From: Carol009 <discussions@mathforum.org>
To: discretemath@mathforum.org
Sent: Thursday, 17 November, 2011 12:13:05
Subject: help me in this discrete math

.Prove that the product of two of the numbers: 65^1000 - 8^2001 + 3^177; 79^1212

- 9^2399 +2^2001, and 24^4493 - 5^8192 +7^1777 is nonnegative. (Do not try
to evaluate these numbers! ).