Question

4ctg45°+3 sin 30°-0,5cos90

Answer 1

Ответ:

5.5

Объяснение:

ctg45 = 1

sin 30 = 0.5

cos90 = 0

4*1+3*0.5-0.5*0=4+1.5-0=5.5

Answer 2

Let's break down and calculate each part of the expression step by step:

1. Calculate 4 * cot(45°): cot(45°) = 1 4 * cot(45°) = 4

2. Calculate 3 * sin(30°): sin(30°) = 0.5 3 * sin(30°) = 3 * 0.5 = 1.5

3. Calculate 0.5 * cos(90°): cos(90°) = 0 0.5 * cos(90°) = 0

Now, let's add these results together: 4 + 1.5 - 0 = 5.5

So, the final result is 5.5.