Question

Вычислите 49^(1-log7 2 )+5

Answer 1

$49^{1-log_7 2 }+5= frac{49^1}{49^{log_72}} +5= frac{49}{7^{2log_72}} +5= frac{49}{7^{log_72^2}} +5= frac{49}{4} +5=17,25$