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Tangent of Double Angle, |θ|≤44° Calculator

Tangent of Double Angle, |θ|≤44°. Example: Angle: 20 degrees gives 0.839099631177 number. Tangent identity only, |θ|≤44°; existing sine/cosine double-angle tools linked separately. Original useful product scope; historical catalog title does not grant missing modes or source parity.

YOUR INPUTS Live calculation

Tangent identity only, |θ|≤44°; existing sine/cosine double-angle tools linked separately. Original useful product scope; historical catalog title does not grant missing modes or source parity. Derivation: Double an angle then take tangent; bounded domain avoids90° poles.

Accepted inputs: Angle: -44 to 44 degrees.

Example values. Enter your own inputs.

Tangent of Double Angle, |θ|≤44°

0.8390996312number
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How the calculation works

tan(2θ)

Worked example

With angle 20 degrees, tangent of double angle, |θ|≤44° is 0.8390996312 number.

Assumptions and limits

Tangent identity only, |θ|≤44°; existing sine/cosine double-angle tools linked separately. Original useful product scope; historical catalog title does not grant missing modes or source parity. Derivation: Double an angle then take tangent; bounded domain avoids90° poles.

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Tangent of Double Angle, |θ|≤44°0.8390996312 number
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