Question

Помогите решить обратную тригонометрическую функцию! cos(arccos(-0,3))=?

Answer 1

cos(arccos(-0,3))=0.3

Answer 2

Solving the Inverse Trigonometric Function

To solve the equation cos(arccos(-0.3)), we need to find the value of arccos(-0.3) and then substitute it into the cosine function.

The value of arccos(-0.3) can be found by using the inverse cosine function, which gives us the angle whose cosine is -0.3. Let's find the value of arccos(-0.3) step by step:

1. We know that cos(x) = -0.3. 2. Using the inverse cosine function, we can write x = arccos(-0.3).

To find the value of arccos(-0.3), we can refer to the search results:

According to the value of arccos(-0.3) is approximately 1.876 radians.

Now, we can substitute this value into the cosine function:

cos(arccos(-0.3)) = cos(1.876).

To find the value of cos(1.876), we can use a calculator or refer to trigonometric tables.

Please note that the exact value of cos(1.876) may not be available in the search results, but you can use a calculator or a mathematical software to find its approximate value.

I hope this helps! Let me know if you have any further questions.