Question

Довесты тотожнисть СРОЧНО!

Answer 1

Ответ:

Объяснение:

:) :) :)

Answer 2

$\bf \: \frac{ \bigg( \frac{a}{a - 3} + \frac{10}{a - 3} + \frac{25}{ {a}^{2} - 3a } \bigg) }{ \bigg( \frac{5}{ {a}^{2} } + \frac{2}{a} + \frac{1}{5} \bigg)} = \frac{ \frac{ {a}^{2} + 10a + 25 }{ {a}^{2} - 3a } }{ \frac{25 + 10a + {a}^{2} }{5 {a}^{2} } } = \frac{ \frac{ { \big(a + 5 \big)}^{2} }{a \times \big(a - 3 \big)} }{ \frac{ { \big(a + 5 \big)}^{2} }{a \times \big(5a \big)} } \huge\equiv \: \frac{5a}{a - 3} ; \\ \\ \bf \huge \: tozhdestvo \: \: \: \: dokazano.$