What is the value of arccos(30/60) ?

The value of arccos(30/60) is pi/3

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arccos(30/60)

arccos (\frac{30}{60})

\frac{π}{3}

Decimal Notation

60

Solution steps

arccos (\frac{30}{60})

Use the following trivial identity:

arccos (\frac{30}{60}) = \frac{π}{3}

arccos (\frac{30}{60})

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}

= \frac{π}{3}

2.4 \cdot sin (3 0^{\circ})

sin (15 0^{\circ}) + cos (51 0^{\circ}) + tan (411 0^{\circ}) - tan (21 0^{\circ})

tan (\frac{\frac{3}{2}}{- \frac{1}{2}})

sin^{4} (\frac{π}{3})

sin^{2} (3 0^{\circ}) - cot^{2} (6 0^{\circ})