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Well, the usual way would be to use a scientific calculator - one that has support for trigonometric functions such as cosine. Make sure the calculator is set to "degrees", since I assume the "140" represents degrees.
Of course you might also use the infinite series for the cosine function (which is basically what the calculator does). Convert the angle to radians, then use the infinite Tailor series: cos x = 1 - x2/2! + x4/4! - x6/6! + ...
What else can I help you with?
How do you solve a cosine problem?
The answer depends on the nature of the problem.
How do you solve tangent cosine tangent-cosine.?
It isn't clear what you want to solve for. To solve trigonometric equations, it often helps to convert other angular functions (tangent, cotangent, secant, cosecant) into the equivalent of sines and cosines. However, the details of course depend on the specific case.
How do you solve for a triangle with two angles but no lengths?
you can use the sine, cosine, tangent formula.
What is cosine cubed?
It is cosine*cosine*cosine.
140 - z equals 246 solve for z?
-106
The inverse of the cosine function?
Inverse of Cosine is 'ArcCos' or Cos^(-1) The reciprocal of Cosine is !/ Cosine = Secant.
What is 140 percent of 1200?
To solve this, multiply 1.4 by 1200 This will leave you with 1680
How do you solve sohcahtoa?
It means for any right angle triangle:- sine = opposte/hypotenuse cosine = adjacent/hypotenuse tangent = opposite/adjacent
What is cosine of 1?
Cosine of 1 degree is about 0.999848. Cosine of 1 radian is about 0.540302.
How does the tangent function relate to sine and cosine?
Tangent = sine/cosine provided that cosine is non-zero. When cosine is 0, then tangent is undefined.
What is an inverse cosine?
The inverse of the cosine is the secant.
Reciprocal of a cosine?
Reciprocal of Cosine is Secant
