Calxsolver
Trigonometry

Trig Function Evaluator

Pick a trigonometric function and an angle. The evaluator converts degrees to radians when needed, then computes the value. The reciprocal functions csc, sec and cot are derived from sin, cos and tan, and undefined cases are reported clearly.

Trig Function Evaluator

Evaluate sin, cos, tan, csc, sec or cot of an angle.

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Frequently asked questions

Can I work in degrees?

Yes. Choose Degrees or Radians; degree inputs are converted to radians before evaluation.

Why is tan 90° undefined?

Tangent is sin/cos, and cos 90° is 0, so the quotient is undefined. The tool reports this instead of a huge number.

What are csc, sec and cot?

They are the reciprocals of sin, cos and tan respectively.

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