Use Cuemath's Online Cosine Calculator and find the cosine value for a given angle theta. Try your hands at our Online Cosine Calculator - an effective tool to solve your complicated calculations.
Inverse cosine calculator | arccos(x) By Joe Sexton Full bio Reviewed by Bailey Nelson, MS Full bio Copy Link Share on Facebook Share on X Share on Pinterest Cite How to Find the Cosine of an Angle In aright triangle, the cosine of angle α, or cos(α), is the ratio between the ...
To calculate arccos, use a scientific calculator and theacosorcos-1function, or just use the calculator above. Most scientific calculators require the angle value in radians to solve for cos. Inverse Cosine Formula The inverse cosine formula is: ...
Example 2: Find the cosine value if the θ = 60°? Solution: Given θ = 60° cos 60° = 1 / 2 Example 3:Find the tangent value if the θ = 45°? Solution: Given θ = 45° tan 45° = 1 Similarly, you can try the sine cosine tangent calculator to find the sine, cosine, ...
cosine: In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse.
Common values of the cosine function x (°)x (rad.)sine(x) 0°01 30°π/60.866025 45°π/40.707107 60°π/30.50 90°π/20 120°2π/3-0.50 135°3π/4-0.707107 150°5π/6-0.866025 180°π-1 Cite this calculator & page If you'd like to cite this online calculator resource and ...
For other angles, the values of the trigonometric functions are usually found from a set of tables or a scientific calculator. For the limiting values of 0° and 90°, the length of one side of the triangle approaches zero while the other approaches that of the hypotenuse, resulting in the...
Figure 1. Right triangle ABC with sides and vertices labeled, and right angle A indicated In this context, one might wonder: what is the cosine function? Or what is the cosine definition, that is, what is the cos meaning? It turns out that right triangles are useful for providing the tr...
Using the Arccosine Calculator To use the tool to find the angle from a cosine, enter the ratio, choose the units you'd like as output, and compute. Cosine- ratio of the adjacent side over the hypotenuse Output Degrees or Radians?- choose to return degrees or radians ...
Figure 1. Right triangle ABC with sides and vertices labeled, and right angle A indicated In this context, one might wonder: what is the cosine function? Or what is the cosine definition, that is, what is the cos meaning? It turns out that right triangles are useful for providing the tr...