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Q: How do you find cosine direction?

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Yes.

Sine= Opposite/ Hypotenuse Cosine= Adjacent/ Hypotenuse

You mean, you have the cosine, and want the angle? That is called arc-cosine, often written as cos-1x. Your scientific calculator should have a "shift" key or something similar, which you press, followed by the cosine key. That will give you the inverse cosine or arc-cosine.

Sine = -0.5 Cosine = -0.866 Tangent = 0.577

Cosine(30) = sqrt(3)/2

It is cosine*cosine*cosine.

Sides have lenght, angles do not. Cosine is the ratio of the adjacent side to the hypotenuse. Cosine can be used to find either of these sides if the other is known.

For a right angle triangle:- hypotenuse = adjacent/cosine or hypotenuse = opposite/sine

The sine, cosine and tangent are used to find the degrees of a right angle triangle.

The maximum of the sine and cosine functions is +1, and the minimum is -1.

use the SohCahToa method

cos(30) = sqrt(3)/2 so cosine squared is 3/4.

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