Identity (Equation or Inequality)
An equation which is true regardless of what
values are substituted for any variables (if there are any variables
at all).
Identities: |
1 + 1 = 2
(x + y)2 = x2 + 2xy + y2
a2 ≥ 0
sin2 θ + cos2 θ = 1 |
See
also
Conditional
equation, conditional
inequality, trig
identities
|