Question

Обчислити 30 баллов даю

sin 0 + cos 180* - 2tg 0 + 3 sin 90*

Answer 1

Ответ:

First, let's simplify each term separately:

sin(0) = 0 (sin of 0 degrees is 0)

cos(180) = -1 (cos of 180 degrees is -1)

2tg(0) = 2 tan(0) = 2 0 = 0 (tan of 0 degrees is 0)

3sin(90) = 3 (sin of 90 degrees is 1, multiplied by 3 is 3)

Now, let's substitute these values back into the equation:

0 + (-1) - 0 + 3 = -1 + 3 = 2

So, sin 0 + cos 180 - 2tg 0 + 3 sin 90 equals 2.