Trig Identities Verifier
Verify key trig identities in real-time
sin²θ + cos²θ = 1Numerical difference between sides: -1.11022302463e-16
tan²θ + 1 = sec²θNumerical difference between sides: 0
sin(2θ) = 2sinθcosθNumerical difference between sides: -2.22044604925e-16
cos(2θ) = cos²θ−sin²θNumerical difference between sides: 6.66133814775e-16
Angle units are explicit. Inverse trig outside its real domain and ratios with a zero denominator are reported as undefined.