Question

Tgt*cos(-t)+sin(пи+t)

Answer 1

Решение в приложении.

Answer 2

To simplify the expression Tgt*cos(-t) + sin(π + t), we can use trigonometric identities.

First, let's consider the cosine of the negative angle:

cos(-t) = cos(t)

Next, let's simplify the sine of the sum of angles:

sin(π + t) = sin(π) * cos(t) + cos(π) * sin(t)

We know that sin(π) = 0 and cos(π) = -1, so we can substitute those values:

sin(π + t) = 0 * cos(t) + (-1) * sin(t) = -sin(t)

Now we can rewrite the expression:

Tgtcos(-t) + sin(π + t) = Tgtcos(t) + (-sin(t))

This is the simplified form of the given expression.