Question

4 cosП4-2sin П4

Answer 1

Если появятся какие-нибудь вопросы — задавайте.

Если моё решение оказалось полезным, смело отмечайте его как «лучший ответ».

Answer 2

It appears that you've written a mathematical expression: "4 cosП4-2sin П4." However, it seems there is an issue with the notation. In mathematics, the symbol "П" typically represents the constant pi (π), which is approximately equal to 3.14159. However, it appears to be used as a variable or placeholder in your expression, which might not be intended.

If you meant to use "π" as the constant, the expression can be rewritten as:

4cos(π/4) - 2sin(π/4)

Now, let's evaluate the expression:

cos(π/4) is the cosine of π/4 radians, which is equal to √2/2 ≈ 0.7071.

sin(π/4) is the sine of π/4 radians, which is also equal to √2/2 ≈ 0.7071.

Now, substitute these values back into the expression:

4 * 0.7071 - 2 * 0.7071

Calculating further:

= 2.8284 - 1.4142

= 1.4142

So, the simplified value of the expression is approximately 1.4142.