Question

СРОЧНО!!! НЕ ИГНОРЬТЕ!!! ДАЮ 50 БАЛЛОВ!!!
одно задание - одно фото!

Answer 1

Ответ:

Объяснение:

1)

$=\frac{t}{k-8}-\frac{16}{k-8}=\frac{t-16}{k-8}$

2)

3/5 = 0.6

3)

= $\frac{t^{2}}{t^{2}-u^{2}}=\frac{t^{2}}{(t-u)(t+u)} =\frac{10t^{2}}{10(t-u)(t+u)} =\frac{10t^{2}}{10(t^{2}-u^{2})}\\\\\frac{t-u}{10(t+u)} = \frac{t^{2}-2tu+u^{2}}{10(t-u)(t+u)}= \frac{t^{2}-2tu+u^{2}}{10(t^{2}-u^{2})}$