Inverse Cosine (Arccos) Calculator
Calculate the inverse cosine (arccos) of a value. Returns the angle whose cosine equals the input.
Angle Rad
1.04719755
सूत्र
## Inverse Cosine (Arccos) ### Definition **arccos(x) = the angle whose cosine is x** ### Domain and Range - **Domain**: -1 ≤ x ≤ 1 - **Range**: 0° to 180° (0 to pi radians) ### Common Values - arccos(1) = 0° - arccos(0.5) = 60° - arccos(0) = 90° - arccos(-1) = 180°
हल किया गया उदाहरण
Find arccos(0.5).
- 01arccos(0.5) = pi/3 radians
- 02= 60 degrees
- 03Verification: cos(60°) = 0.5
अक्सर पूछे जाने वाले प्रश्न
What is arccos?
Arccos (inverse cosine) returns the angle whose cosine equals the given value. It is the inverse function of cosine.
Why does arccos range from 0° to 180°?
This range ensures arccos is a proper function (one output per input). Cosine takes each value in [-1,1] exactly once in the interval [0°, 180°].
How are arcsin and arccos related?
arcsin(x) + arccos(x) = 90° for any x in [-1, 1]. They are complementary angles.
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