Question

Помогите плиз!!!!!!!!

Answer 1

$frac{x^{n+m}}{x^{n+1}x^{m-1}}=frac{x^{n+m}}{x^{n+1+m-1}}=frac{x^{n+m}}{x^{n+m}}=1$

$frac{a^2a^{n+1}a^3}{a^{n-1}a^6}=frac{a^{2+n+1+3}}{a^{n-1+6}}=frac{a^{n+6}}{a^{n+5}}=a^{n+6-n-5}=a$

$frac{x^{2n}x^{n+3}}{x^{3n}}=frac{x^{2n+n+3}}{x^{3n}}=frac{x^{3n+3}}{x^{3n}}=x^{3n+3-3n}=x^3$

$frac{d^{n+1}}{d^{n-5}d^{7}}=frac{d^{n+1}}{d^{n-5+7}}=frac{d^{n+1}}{d^{n+2}}=d^{n+1-n-2}=d^{-1}= frac{1}{d}$

Answer 2

Спасибо помогите еще!