 # WAEC REVISION – Indices, Logarithms, Surds ### Improve Competency with MyMathsHero

A number that can be expressed as a fraction of integers (assuming the denominator is never 0) 5 4 is called a rational number. Examples of rational numbers are, and 2. … An irrational number involving a root is called a surd.

In this section, we cover the following:  Questions on Indices, logarithms (numbers > 1), logarithms (including numbers < 1), calculations without logarithms. At the end of this topic, students should understand the following among other things:

• Understand the laws of indices and fully understand the theory of logarithms,
• Solve equations expressed in indices and link indices to logarithms
• Solve logarithm equations and calculate with or without using log tables and mathematical calculators,
• Simplify various fractions and rationalize the denominators,
• Use binomial conjugates to simplify binomial expressions
• Apply surds to trig ratios and Pythagoras
1
SS3-WAEC REVISION 7- LESSON 1A-INDICES & LOGARITHM
29 Minutes
2
SS3-WAEC REVISION 7- LESSON 1B-INDICES & LOGARITHM
16 Minutes
3
SS3-WAEC REVISION 4- LESSON 1A-LONGARITHMS & SETS
33 Minutes
4
SS3-WAEC REVISION 4- LESSON 1B-LONGARITHMS & SETS
18 Minutes
5
SS3-WAEC REVISION 4- LESSON 2A-LOGARITHMS & SETS
26 Minutes
6
SS3-WAEC REVISION 4- LESSON 2B-LOGARITHMS & SETS
27 Minutes
7
SS3-WAEC REVISION 7- LESSON 5A-APPROXIMATION, ERROR & SURDS
22 Minutes
8
SS3-WAEC REVISION 7- LESSON 5B-APPROXIMATION, ERROR & SURDS-
15 Minutes

### REVISION LESSON-SOLVED EXAM QUESTIONS (THEORY)

1
Topic 3- INDICES, LOGARITHMS
1 Minute
2
Topic 3- INDICES, LOGARITHMS
2 Minutes
3
Topic 3- INDICES, LOGARITHMS
2 Minutes
4
Topic 3- INDICES, LOGARITHMS
2 Minutes
5
Topic 3- INDICES, LOGARITHMS
2 Minutes
6
Topic 3- INDICES, LOGARITHMS
3 Minutes
7
Topic 3- INDICES, LOGARITHMS
3 Minutes
8
Topic 3- INDICES, LOGARITHMS
1 Minute
9
Topic 3- INDICES, LOGARITHMS
2 Minutes
10
Topic 3- INDICES, LOGARITHMS
4 Minutes
11
Topic 3- INDICES, LOGARITHMS
4 Minutes
12
Topic 3- INDICES, LOGARITHMS
2 Minutes
13
Topic 3- INDICES, LOGARITHMS
3 Minutes
14
Topic 3- INDICES, LOGARITHMS
4 Minutes