Question

Срочно!решите,очень надо

Answer 1

$frac{2*log_{7}16}{ ( log_{3}( sqrt{10}+1) + log_{3}( sqrt{10}-1))*log_{7}2} = \ = frac{2}{log_{3}( sqrt{10}+1) + log_{3}( sqrt{10}-1)} * frac{log_{7}16}{log_{7}2}= \ = frac{2}{log_{3}( sqrt{10}+1)( sqrt{10}-1)} *log_{2}16= frac{2}{log_{3}( 10-1)} * 4 = \ =frac{2*4}{log_{3}9} = frac{8}{2}= 4$

Answer 2

$frac {2 log_{7}(16)}{( log_3( sqrt{10}+1) +log_3( sqrt{10}-1)) log_7 2} = \ frac {2 log_{7}2^4}{ log_3(( sqrt{10}+1)(sqrt{10}-1)) log_7 2} = \ frac {2*4* log_{7}2}{ log_3(10 - 1) log_7 2} =\ frac {2*4}{ log_3(9)} = \ frac {2*4}{2} = 4$