Number Theory

True or False? ( 178 2 12 + 184 1 12 ) 1 12 = 1922 (1782^{12}+1841^{12})^{\frac{1}{12}} = 1922

True False

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3 solutions

Arulx Z
Mar 29, 2016

( 178 2 12 + 184 1 12 ) 1 12 = 1922 178 2 12 + 184 1 12 = 1922 12 \begin{matrix} \left( 1782^{ 12 }+1841^{ 12 } \right) ^{ \frac { 1 }{ 12 } } & = & 1922 \\ 1782^{ 12 }+1841^{ 12 } & = & { 1922 }^{ 12 } \end{matrix}

This violates Fermat's last theorem.

Note: this answer is just an elaboration of Nurul's answer

Nurul Ikram
Mar 26, 2016

In an apparent glance,

Your mind & your helping device may deceive you.

The Fermat's Last Theorem will be violated if the equation is true.

On the other side the sum of these two numbers where one of them is even and other one is odd should be an odd number. But the number is in the right side is absolutely falsely placed.

Sonia Gupta
Mar 26, 2016

We all know that when the power of any two variables is same then we take it common. By this we can solve this. [{(1782+1841)/\12} /\ (1/12)] in this power 12 will be cancelled by 1/12 because when there are two power on the same base then powers are multiplied. So, 12 * 1/12 = 1 and when we add 1782 & 1841 we get (3623)/\1 or 3623 not 1922. So this is false.

Your answer is correct but your explanation is totally wrong......the power cannot be cancelled in this way.

展豪 張 - 5 years, 2 months ago

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