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Popular >

2cos(-1)

Solution

2 cos (- 1)

Solution

1.08060 \dots

Solution steps

2 cos (- 1)

Refine to a decimal form

= 1.08060 \dots

Popular Examples

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arctan (1.333)

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sin(1/2 arctan(-5/13))

sin (\frac{1}{2} arctan (- \frac{5}{13}))

Frequently Asked Questions (FAQ)

What is the value of 2cos(-1) ?
The value of 2cos(-1) is 1.08060…