Archive for February 2008
25
Logarithm Equation Question 1
2 Comments | Posted by alwaysLovely in A-Math, Weekly Question
I met a student and she passed me this paper with this Lg question on it, asking me on the solution for solving this equation :
Coincidentally, I was asking a few O Level students of mine on which are the “Killer A-Maths Topics” for them. Logarithm, Indices, Surds is one of the common topic which is ranked high on their list.
Now back to the question.
PS:
Notice that right hand side of the equal sign is something you can compute using the calculator hence,
Use your calculator to find out the value of
and the value is 1.69 ( round off to 3 significant figure) so the answer for this question is
I will be coming out with a series of posts on Logarithms since it is a “hot” topic for students :-) Subscribe to my feeds to be updated of this post.
I have discussed about Quadratic Equations and Graphs previously in Features of Quadratic Equations and Graphs , Different representations of quadratic equations and their significance
This is really an important topic for students taking E-Math (elementary math) , more so for A-Math (additional math) as well.
Be sure that you know the basic of recognizing if a given equation is quadratic, how the quadratic equation looks like, the 5 main features of a quadratic graph, the different methods to solve a quadratic equation.
For students taking A-Math, you would definitely need to know more about the discriminant, sum or product of roots.
I would be elaborating more on methods to solve a quadratic equation and tips on discriminant so be sure you follow the blog by subscribing to the feed here.

By netsrot
I read about this content held by Student Blog Project.
Who says there is no free lunch? Now we have even Free McDonald :)
To find out how to be part of this Free McDonald, check out Student Blog Project.
I’m sorry this is only open to Full Time Students in Singapore who have a blog.
Operations of Standard Forms refer to + -×÷
+ -
Golden Rule #1: Change everything to the bigger powerGolden Rule #2: Factorise
Click on image for bigger view×÷
Golden Rule #1: Group numbers together, Group bases together
Golden Rule #2: Apply Power Laws
Click on image for bigger view
I was going through Indices with some of the students recently when I notice this common misconception.
is read as Square Root which means the “default” number outside the square root sign is 2 NOT 1 which a couple of students have thought about.

I am going to write some tips on operations of standard form questions so I strongly suggest you subscribe to my feed if you have not done so,so that you will be posted when I write a new post .












