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For How many Integers?

Expert replies
Source: — Problem Solving |

by mp2437 » Wed Oct 28, 2009 5:53 am
2 and 4.
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by Leon1984 » Wed Oct 28, 2009 7:44 am
Thank you, makes me feel silly lol
Leon
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Re: For How many Integers?

by farooq » Wed Oct 28, 2009 10:13 am
Leon1984 wrote:For how many integers in 2^n = n^2?

I chose one integer but the answer is two integers.

What are the integers?
2^n = n^2

if n=1

2=1 not correct.

n=2, 4=4 correct

n=3 not correct.

n=4, 16=16 correct.
Regards,
Farooq Farooqui.
London. UK

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