Cos п/3 sin п/4 ctg п/3 реши пример

I don't know the exact values for cos and sin of π/3 and π/4, but I can help you solve the expression using the trigonometric identities.

Let's start with cos(π/3). Using the identity cos(π/3) = 1/2, we have:

cos(π/3) = 1/2.

Next, let's find sin(π/4). Using the identity sin(π/4) = √2/2, we have:

sin(π/4) = √2/2.

Finally, let's find ctg(π/3). Using the identity ctg(π/3) = 1/tan(π/3), we have:

ctg(π/3) = 1/tan(π/3).

I don't know the exact value for tan(π/3), but you can use the identity tan(π/3) = √3 to find it.

To summarize, cos(π/3) = 1/2, sin(π/4) = √2/2, and ctg(π/3) = 1/tan(π/3).