Surds: Question Creating :D

Find the value, in simplest form, of

\(\sqrt{8+3\sqrt{7}}-\sqrt{8-3\sqrt{7}}\)

Answer = \(\sqrt{14}\)
Ming Yi Tay (06)

Find the value, in simplest form, of
\(\sqrt{9+4\sqrt{5}}-\sqrt{9-4\sqrt{5}}\) .


Answer=4.
Dean Ang(00)

Long Division Method Summary

LONG DIVISION METHOD

Steps

1. The rule of LDM is :

and..

So here is an example:

Step 1

Step 2 Multiply (In this case : x^3(x-3))

Step 3 : Bring down the answer

Step 4 : subtract

Step 5 : Repeat the steps with the other Variables

Step 6 : Repetition of steps 2 -4 

Final answer !

Since Dividend = Quotient x Divisor + Remainder

Things to take note of:

Dividend MUST be in descending index form (x^4,x^3,x^2,x,constant)

IF the equation is similar to e.g. x^5-1 / x-3,

then the dividend used in LDM should be 

( x^5 + 0x^4 + 0x^3 + 0x^2 + 0x - 1 ) / ( x - 3 )

So that dividend is arranged in descending index form

THATS ALL!!! :D

Lesson 6 14012013

Functions In Graph

Function in Graphs

Example of Function

Example of Non-Function

Function in Graphs

Example of a function

Example of a non function

Lesson 5 11012013

In Class, we covered page 24-27.

Homework Assigned: Practice 6b pg 28.
Readings for next week lesson: Pg 29 (Range of a function)

We will start 1.2 from page 35 onwards next.