Add Maths

Function

Relation (Hubungan) - Domain (object) , codomain (image)

Range/Julat - the set of image

Only 2 types of relation are called functions which is one-to-one and many-to-one whereby every object in domain has only one image in the codomain.

There are three methods to represent the function.

i) Arrow diagram / Gambar Rajah Anak Panah

ii) Ordered pairs / Pasangan bertertib

iii) Graph / Graf

Composite function: fg(x), gf(x), f²(x) and so on.

Inverse function: f(a)=b, f^-1(b)=a

*modulus|x|=come out definitely is positive number & must be a number.

# FIS=Find Inside Sub    FOI=Find Outside Inverse

References from Tan Yann Ju's YouTube Channel.

first solution

second solution