Question

Sin30°+cos30°= Cos60°-sin45°=

Answer 1

1/2-1/2=0

Второе не знаю

Answer 2

Let's evaluate each of these trigonometric expressions step by step:

1. Sin 30° + Cos 30°:

We'll use the values of sine and cosine for 30°:

• Sin 30° = 0.5
• Cos 30° = √3 / 2 ≈ 0.866

Now, add the values: Sin 30° + Cos 30° = 0.5 + 0.866 ≈ 1.366

2. Cos 60° - Sin 45°:

We'll use the values of cosine for 60° and sine for 45°:

• Cos 60° = 0.5
• Sin 45° = √2 / 2 ≈ 0.707

Now, subtract the values: Cos 60° - Sin 45° = 0.5 - 0.707 ≈ -0.207

So, the final results are:

• Sin 30° + Cos 30° ≈ 1.366
• Cos 60° - Sin 45° ≈ -0.207