If \(\left(\sqrt[4]{11}\right)^{3x-3}=\frac{1}{5}\), what is the value of \(\left(\sqrt[4]{11}\right)^{6x+2}\)? Express your answer as a fraction.
I hope this helps ( i took a snapshot from word, cause LaTeX gave me cancer ).
Thanks, Dr Dros!!!
Here's another method without resorting to logs
[(11)^ (1/4)] ^(3x -3) = 1/5 implies that
[ 11 ^(x - 1) ] ^ (3/4) = 1/5 take both sides to the 4/3 power
[11 ^(x - 1) ] = (1/5)^(4/3)
[11^x ] / 11 = (1/5)^(4/3)
11^x = 11* (1/5)^(4/3)
So..... 11^(6x) = (11^x)^6 = [ 11 * (1/5)^(4/3) ]^6 = [ 11^6] * [ 1/5]^8
So..... [11^(1/4)]^(6x + 2) = [ 11^(6x + 2) ] ^(1/4) = [ 11 ^(6x) * 11^2] ^ (1/4) =
[ 11^6 * (1/5)^8 ] ^(1/4) * 11^(1/2) =
[ 11^(6/4)] * [(1/5)^8]^(1/4) * 11^(1/2) =
[11 ^ (3/2) * [ (1/5) ^2] * 11^(1/2) =
[ 11 ^2] * (1 / 25) =
121 / 25