Reciprocal
The reciprocal of a number is: 1 divided by the number
Examples:
• the reciprocal of 2 is 1/2 (half)
• the reciprocal of 10 is 1/10 (=0.1)
When we multiply a number by its reciprocal we get 1.
Example: 2 × 1/2 = 1
Every number has a reciprocal except 0 (1/0 is undefined)
The reciprocal can be shown with a little "-1" like this: x-1 = 1/x
Example: 4-1 = 1/4 = 0.25
Also called the "Multiplicative Inverse"
Examples:
• the reciprocal of 2 is 1/2 (half)
• the reciprocal of 10 is 1/10 (=0.1)
When we multiply a number by its reciprocal we get 1.
Example: 2 × 1/2 = 1
Every number has a reciprocal except 0 (1/0 is undefined)
The reciprocal can be shown with a little "-1" like this: x-1 = 1/x
Example: 4-1 = 1/4 = 0.25
Also called the "Multiplicative Inverse"
See: Multiplicative Inverse
- sexagesimal
- shape
- sharing
- si units
- side
- side view
- sign
- signed number
- significant digits
- similar
- simple harmonic motion
- simple interest
- simplest form (algebra)
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- simplify (fraction)
- simultaneous equations
- sine
- sine rule
- sinh
- sinusoid
- size
- skewed data
- skip counting
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- slide