Question

Помогите!!!
Срочно, умоляю

Answer 1

$...=frac{(2*5)^{2n}*3^2}{(5^2)^n*2^{2n+2}}=frac{2^{2n}*5^{2n}*3^2}{5^{2n}*2^{2n}*2^2}=frac{9}{4}$

Answer 2

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