math

lalaa. hahzzzzz...


yay. i finally understand functions and relations, after 1 hour of mugging. or maybe a bit more. haha. YES! im so happy! haha.

Inverse is just changing of subject

Composite is just combining

Inverse of composite is just finding composite den inverse which is quite easy

Finding range is simple. whatever answer is possible also can. just must be one-to-one and onto. this one may have to a bit careful.

Finding g from fg is also simple. just use inverse den put in.

g(x) = f-1 f g(x) = f-1 (fg(x))

Den drawing of graphs just concentrate. label axes. use ruler. label domain co-ordinates n turning point. n maybe if possible x-intercepts.

haha. that's all. yay. i feel so pro. haha.


yes. haha.

bye. chiong eng. yay...

Patrick