Question

Sin 30° - cos60° = А) 2 Б) 1 В) 0 Г) -1

Answer 1

Ответ:

В) 0

Объяснение:

синус 30° = 0,5

косинус 60° = 0,5

0,5-0,5=0

Answer 2

To calculate $\sin(30^\circ) - \cos(60^\circ)$, you can use the values of sine and cosine for these angles:

$\sin(30^\circ) = \frac{1}{2}$ $\cos(60^\circ) = \frac{1}{2}$

Now, plug these values into the expression:

$\sin(30^\circ) - \cos(60^\circ) = \frac{1}{2} - \frac{1}{2}$

Simplifying the expression:

$\frac{1}{2} - \frac{1}{2} = 0$

So, $\sin(30^\circ) - \cos(60^\circ) = 0$.

Therefore, the correct answer is В) 0.