Question

Как можно преобразовать?

Answer 1

$\frac{1-sin(2x)}{sin(x) - cos(x)} = \frac{sin^2(x) + cos^2(x) - 2 * sin(x)*cos(x)}{sin(x) - cos(x)} = \frac{(sin(x)-cos(x))^2}{sin(x) - cos(x)} = sin(x) - cos(x)$