Question

Cos(180-x)*sin(180-x)-cos(90-x)*sin(90-x)

Answer 1

Может конечно плохо видно и почерк не очень

Answer 2

Let's simplify the given expression step by step:

1. Use trigonometric identities:

cos(180 - x) = -cos(x) sin(180 - x) = sin(x) cos(90 - x) = sin(x) sin(90 - x) = cos(x)

2. Substitute the values:

(-cos(x) * sin(x)) - (sin(x) * cos(x))

3. Rearrange the terms:

-(cos(x) * sin(x)) - (sin(x) * cos(x))

4. Use the property of the negative sign:

-2 * (cos(x) * sin(x))

So, the simplified expression is: -2 * (cos(x) * sin(x))