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Mathematics 15 Online
jhonyy9:

help ...

jhonyy9:

\[x = \log_{a}bc => bc = a^x , y = \log_{b}ca => ca = b^y , z = \log_{c}ab => ab = c^z ,find 1+abc = ? \] any help - idea ? thank you !

jhonyy9:

find 1+abc = ?

darkknight:

I think your question got cut off at the end

darkknight:

oh nvm

rozez:

Three equations & three unknowns, what's the problem?

jhonyy9:

bc = a^x => b = (a^x)/c ca = b^y so ca = [(a^x)/c]^y ab = c^z so a[(a^x)/c] = c^z bc*ca*ab = (a^x)(b^y)(c^z) (abc)^2 = (a^x)(b^y)(c^z) divide both sides by (abc) and will get abc = [a^(x-1)][(b^(y-1)][c^(z-1)] - are these above wrote correct ?

jhonyy9:

@Ultrilliam your opinion about this please ? thank you

rozez:

write every logarithm with a common base and then rename loga, logb, logc to l, m, n it'll make things easier

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