Question 708280
{{{ log( 2, 1/4 ) = log( 2, 2^(-2) ) }}}
{{{  log( 2, 2^(-2) ) = -2*log( 2,2 ) }}}
{{{ -2*log( 2,2 ) = -2 }}}
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{{{ log( 2,16 ) = log( 2, 2^4 ) }}}
{{{ log( 2, 2^4 ) = 4*log( 2,2 ) }}}
{{{ 4*log( 2,2 ) = 4 }}}
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Now I have
{{{ log( 2, 1/4 ) / log( 2,16 ) = -2/4 }}}
{{{ -2/4 = -1/2 }}}