Chapter 2 : Reciprocal

About This Lesson

Chapter 2
Reciprocal
Of a feeling, action or such: mutual, uniformly felt or done by each party towards the other or others; two-way.
Mutually interchangeable.
Contrary or opposite
Of a number, the number obtained by dividing 1 by the given number.
The result of exchanging the numerator and the denominator of a fraction
Multiplicative inverse

POINT 1: Mathematical calculation of reciprocal
Find the reciprocal of 2
Solution:
From the definitions (d) Reciprocal of a number is the number obtained by dividing 1 by the given number. Thus:
The reciprocal of 2 is 1 divided by 2
That is answer
Find the reciprocal of 3
Solution:
Reciprocal of 3 is answer
Find the reciprocal of
Solution:
Reciprocal of is 1 ÷
That means 1 ÷ = 1 x =
From this dividing 1 by a fraction gives an inverse. Therefore changes to
POINT 2:
Understanding the outcome by taking note of the cause:
For example C, reciprocal shows the inverse of a number by changing
to when 1 divide
Therefore, the inverse of is caused by dividing 1 by
POINT 3:
Cause effect or aftermath reaction of reciprocal:
Example: Find the reciprocal of
Solution:
Reciprocal of is 1 ÷
1 ÷ is 1 x =
From the definition (e)
Reciprocal is the result of exchanging the numerator and the denominator of a fraction.
Meaning was changed to
Changed to
Therefore reciprocal makes the down part to become upper part which is the cause effect of reciprocal.

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