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Popular >

cos(4arctan(sqrt(2)))

Solution

cos (4 arctan (2))

Solution

- 0.77777 \dots

Solution steps

cos (4 arctan (2))

Refine to a decimal form

= - 0.77777 \dots

Popular Examples

2 arccos (\frac{1}{2})

sin(arccos(8/10)+arctan(-6/8))

sin (arccos (\frac{8}{10}) + arctan (- \frac{6}{8}))

tan(sin(cos(pi/2)))-cos(tan(sin(pi)))

tan (sin (cos (\frac{π}{2}))) - cos (tan (sin (π)))

arctan (\frac{7}{18})

4cos(75)+4cos(15)

4 cos (7 5^{\circ}) + 4 cos (1 5^{\circ})

Frequently Asked Questions (FAQ)

What is the value of cos(4arctan(sqrt(2))) ?
The value of cos(4arctan(sqrt(2))) is -0.77777…