Question

упростите выражение 25*4^n/(4^n-4^(n-1))

Answer 1

$frac{25*4 ^{n} }{4 ^{n}-4 ^{n-1} } = frac{25*4 ^{n} }{4 ^{n-1}(4-1) } = frac{25*4}{3}= frac{100}{3} =33 frac{1}{3}$