Question

Sin56°+cos26°-√3 cos4°

Answer 1

Відповідь:

Пояснення:

Answer 2

To calculate the value of the expression Sin(56°) + Cos(26°) - √3 * Cos(4°), you can use a calculator or trigonometric identities. Here's how you can calculate it step by step:

1. Calculate Sin(56°): Sin(56°) ≈ 0.8290 (rounded to four decimal places).

2. Calculate Cos(26°): Cos(26°) ≈ 0.8940 (rounded to four decimal places).

3. Calculate Cos(4°): Cos(4°) ≈ 0.9976 (rounded to four decimal places).

4. Now, substitute these values into the expression:

   0.8290 + 0.8940 - √3 * 0.9976

5. Calculate √3 ≈ 1.7321 (rounded to four decimal places).

6. Substitute the value of √3 back into the expression:

   0.8290 + 0.8940 - 1.7321 * 0.9976

7. Now, calculate the remaining values:

   0.8290 + 0.8940 - 1.7321 * 0.9976 ≈ 0.8290 + 0.8940 - 1.7319

8. Finally, add and subtract the values:

   0.8290 + 0.8940 - 1.7319 ≈ 0.8290 + 0.8940 - 1.7319 ≈ 0.9921

So, Sin(56°) + Cos(26°) - √3 * Cos(4°) is approximately equal to 0.9921 (rounded to four decimal places).