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Popular >

2arccos(1/2)

Solution

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

Solution

\frac{2 π}{3}

+1

Decimal Notation

120

Solution steps

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

Use the following trivial identity:

arccos (\frac{1}{2}) = \frac{π}{3}

arccos (\frac{1}{2})

x - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2} 0 \frac{1}{2} \frac{2}{2} \frac{3}{2} 1 arccos (x) π \frac{5 π}{6} \frac{3 π}{4} \frac{2 π}{3} \frac{π}{2} \frac{π}{3} \frac{π}{4} \frac{π}{6} 0 arccos (x) 18 0^{\circ} 15 0^{\circ} 13 5^{\circ} 12 0^{\circ} 9 0^{\circ} 6 0^{\circ} 4 5^{\circ} 3 0^{\circ} 0^{\circ}

= \frac{π}{3}

= 2 \cdot \frac{π}{3}

Simplify

2 \cdot \frac{π}{3} : \frac{2 π}{3}

2 \cdot \frac{π}{3}

Multiply fractions:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{π 2}{3}

= \frac{2 π}{3}

Popular Examples

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})

cos(arctan(-(sqrt(3))/3)+pi)

cos (arctan (- \frac{3}{3}) + π)

Frequently Asked Questions (FAQ)

What is the value of 2arccos(1/2) ?
The value of 2arccos(1/2) is (2pi)/3