Trigonometric Simplifier — Step-by-step
Enter a trig expression and see each identity applied with explanation.
Tip: Use parentheses like
sin(x), powers as ^ (e.g., sin(x)^2 or sin^2(x)). Supported tokens: sin, cos, tan, cot, sec, cosec, +, -, *, /, ^, parentheses, numbers, x, π, PI.Click an example to load into input
- sin^2(u) + cos^2(u) → 1
- 1 + tan^2(u) → sec^2(u)
- 1 + cot^2(u) → cosec^2(u)
- sin(u)/cos(u) → tan(u)
- 1/sec(u) → cos(u) 1/cosec(u) → sin(u)
- sin(-u) → -sin(u) , cos(-u) → cos(u)
- sin(π/2 − u) → cos(u) , cos(π/2 − u) → sin(u)