Question

Cos 90 - sin 45 + cos 360 * 2

Answer 1

Ответ:-1.86635932364

Answer 2

Ответ:

cos(90)-sin(45)+ 2cos(360)=-1,86636

Answer 3

Let's break down the expression step by step:

1. cos(90 degrees) = 0
2. sin(45 degrees) = √2/2
3. cos(360 degrees) = 1

Now, let's substitute these values into the expression:

0 - √2/2 + 1 * 2

Now, simplify:

0 - √2/2 + 2

To simplify further, we can express 2 as a fraction with a common denominator:

0 - (√2/2) + (4/2)

Now, combine the fractions:

(0 - √2 + 4) / 2

Finally, simplify:

(4 - √2) / 2

So, the final result of the expression is:

(4 - √2) / 2