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Sin, cosine, and tangent are considered the three main of trigonometry, commonly written as sin, cos, and tan.
sin(θ) = O/H
cos(θ) = A/H
tan(θ) = O/A
Where O is opposite
Where H is Hypotenuse
Where A is Adjacent
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If the tangent of an angle is 2 what is the cosine?
The cosine is ±1/sqrt(5) = ±0.4472 (approx).
Why is it tangent 90 degrees is undefined?
Because it tends to infinity. Additionally, tangent can be expressed as sin theta divided by cos theta. The sine of 90 is 1. The cosine of 90 is 0. That would be 1 divided by 0, or division by zero; which is undefined.
How do you find theta for right triangle?
You can use your trigonometric functions (sine, cosine, and tangent).
How do you use sine cosine and tangent?
They are used to find the angle or side measurement of a right triangle. For example, if 2 sides of a right triangle have known values and an angle has a known measurement, you can find the third side by using sine, cosine or tangent.
At what angle measure are the sin and the cosine equal?
45 degree
