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Popular >

+cos(0)

Solution

+ cos (0)

Solution

1

Solution steps

cos (0)

Use the following trivial identity:

cos (0) = 1

cos (0)

cos (x)

periodicity table with

2 πn

cycle:

x 0 \frac{π}{6} \frac{π}{4} \frac{π}{3} \frac{π}{2} \frac{2 π}{3} \frac{3 π}{4} \frac{5 π}{6} cos (x) 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} x π \frac{7 π}{6} \frac{5 π}{4} \frac{4 π}{3} \frac{3 π}{2} \frac{5 π}{3} \frac{7 π}{4} \frac{11 π}{6} cos (x) - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2} 0 \frac{1}{2} \frac{2}{2} \frac{3}{2}

= 1

= 1

Popular Examples

8sin(0.03858)e^{-0.03858}-1

8 sin (0.03858) e^{- 0.03858} - 1

arccos((-19)/(sqrt(29)*\sqrt{50)})

arccos (\frac{- 19}{29 \cdot 50})

arctan((-4/(sqrt(3)))/(-4))

arctan (\frac{- \frac{4}{3}}{- 4})

- 500 cos (4 5^{\circ})

(tan(80))/(tan(100))

\frac{tan ( 8 0 ^{\circ} )}{tan ( 10 0 ^{\circ} )}

Frequently Asked Questions (FAQ)

What is the value of +cos(0) ?
The value of +cos(0) is 1