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Identities (trigonometry)
Identity Element
Identity Property of Addition
Identity Property of Multiplication
If and only if statement
If then statement
Image
Imaginary numbers
Implicit
Implicit formula
Impossible
Improper fraction
Income Tax
Inch (measurement)
Incircle
Inconsistent equations
Independent events
Independent variable
Indirect proof
Indirect measurement
Individual retirement account (IRA)
Inductive reasoning
Inductive set
Inequality
Inequality sign
Inference
Infinite set
Infinite series
Infinity
Injective mapping
Inscribed
Inscribed angle
Inside and outside
Interior/on/exterior
Integer number
Intersecting lines
Inscribed angles
Integers
Intercept
Intercepted arc
Interpolation
Interpolation (logarithms)
Interpolation (trigonometry)
Interquartile range
Interval
Interval scale
Intersecting lines
Intersecting planes
Intersection (set)
Inverse function
Inverse matrix
Inverse of a statement
Inverse operation
Inverse trigonometric Functions
Inverse variation
Irrational numbers
Irregular polygon
