First we looked at a HW question on Depreciation (see below)

The we started section 5.3 Annunities (notes below)

HW: Look at next 3 examples (videos right) and try questions from this section.

Today after correcting HW questions on Compound interest - in particular looking at using logs to find t - we started Financial maths 5.2 Depreciation.

HW - questions on deprecaation

Below are the two examples from 5.2 on Depreciation explained 

Today we looked over examples 3-4 from 5.1 On Compound Interest (see videos in yesterdays blog) we then looked at a number of questions from this section (see notes).

HW: Try questions from 5.1

Attached below is a PDF with the Solutions to Chapter 5

Today we started Financial Maths Chapter 5 T&T6 (see file below)

HW: Look at videos explaining examples from Sec. 5.1 and try some question from this section.

We also said goodbye to a number of students who have decided not to continue with Higher Level. We also took a few minutes to consider where we are in terms of course progress.

Today we were revision Ch.4 by looking at particular questions that students wished re-explained. We looked at 2 interesting questions:

• Using logs to work out the power
• Sigma notation

You could have started the above question by first dividing in Cartesian form by multiplying above and below by the conjugate of the denominator and then converting your answer into Polar form. 

The video (right) which is a solution to the question asked on the Christmas exam, outlines many of the skills and knowledge required in this area.

Today a number of students were absent due to a German thingy.

We looked over HW 7.6 Q.7 discussing how it may be possible to come up with the formula for Tn by observation. We decided that their was a flaw in Q.7 b in that the solution doesn't work for T1.

We then looked over Sigma notation questions in section 7.5

(class notes will be added tomorrow)

HW: Look over this chapter and identify any areas that need further explanation.