Trigonometric value

Tan(60°) = √3

Tangent — sine divided by cosine, equivalently opposite/adjacent in a right triangle; undefined where cos = 0.

How to derive tan(60°)

tan(60°)=3tan(60°) = \sqrt{3}

tan(60°) = sin(60°)/cos(60°) = (√3/2)/(1/2) = √3. In the 30-60-90 triangle, opposite/adjacent = √3/1.

Unit-circle context

The angle 60° corresponds to π/3 radians and sits Quadrant I on the unit circle.

Other trig values at 60°

Related tan values

Frequently asked

What is the exact value of tan(60°)?
The exact value is √3. Its decimal approximation is 1.73205.
How do you derive tan(60°)?
tan(60°) = sin(60°)/cos(60°) = (√3/2)/(1/2) = √3. In the 30-60-90 triangle, opposite/adjacent = √3/1.
What is 60° in radians?
60° equals π/3 radians (multiply degrees by π/180).

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