document.write( "Question 42061: X^1/m=Y^1/n=Z^1/p, xyz=1 then m+n+p=? \n" ); document.write( "
Algebra.Com's Answer #27193 by Fermat(136)![]() ![]() You can put this solution on YOUR website! You have, \n" ); document.write( "x^(1/m)=y^(1/n)=z^(1/p) \n" ); document.write( "From, \n" ); document.write( "x^(1/m)=y^(1/n) \n" ); document.write( "x = y^(m/n) -------------(1) \n" ); document.write( "=========== \n" ); document.write( "From, \n" ); document.write( "y^(1/n)=z^(1/p) \n" ); document.write( "z = y^(p/n) -------------(2) \n" ); document.write( "=========== \n" ); document.write( "Using (1) and (2), \n" ); document.write( "xyz = y^(m/n) * y * y^(p/n) = 1 \n" ); document.write( "which gives, \n" ); document.write( "y^(m/n + 1 + p/n) = 1 \n" ); document.write( "But if y^k = 1, then k = 0! \n" ); document.write( "So, \n" ); document.write( "(m/n + 1 + p/n) = 0 \n" ); document.write( "m/n + n/n + p/n = 0 \n" ); document.write( "(m+n+p)/n = 0 \n" ); document.write( "m+n+p = 0 \n" ); document.write( "========= \n" ); document.write( " |