Question

Sin210°-cos120°+tg225°

Answer 1

Ответ: Держи)

Объяснение:

Answer 2

To calculate the values of trigonometric functions for the given angles, you can use the following trigonometric identities:

1. Sine (sin):

   • sin(210°) = -sin(30°) = -1/2

2. Cosine (cos):

   • cos(120°) = -cos(60°) = -1/2

3. Tangent (tan):

   • tan(225°) = tan(225° - 180°) = tan(45°) = 1

Now, plug these values into the expression:

sin(210°) - cos(120°) + tan(225°) = (-1/2) - (-1/2) + 1

Now, simplify:

-(-1/2) + 1 = 1/2 + 1 = 3/2

So, the value of the expression sin(210°) - cos(120°) + tan(225°) is 3/2.