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Step-by-step explanation:

Bracket Division Multiplication Addition Subtraction

Answer:

0

Step-by-step explanation:

Let's break down the expression step by step:

1. Multiply the cosine of a number squared by -1:

cos^2(-1) = cos(-1) * cos(-1)

2. Multiply 2 by 0 and then multiply the result by -1:

2 * 0 * -1

3. Multiply 0 by -1:

0 * -1

Now, let's calculate each part:

1. To calculate cos^2(-1), we first need to find the cosine of -1.

The cosine of -1 is approximately 0.5403.

So, cos^2(-1) = (0.5403)^2 = 0.2916.

2. Multiply 2 by 0 and then multiply the result by -1:

2 * 0 * -1 = 0.

3. Multiply 0 by -1:

0 * -1 = 0.

Finally, let's add all the results together:

0.2916 + 0 + 0 = 0.2916.

Therefore, the result of the expression is 0.2916.