1. What are Indices?
An index number is a number which is raised to a power. The power, also known as the index, tells you how many times you have to multiply the number by itself. For example,
2ˆ5 means that you have to multiply 2 by itself five times = 2 × 2 × 2 × 2 × 2 = 32.
Indices can be positive or negative numbers.
Example:
2. Example Problems on Indices?
Example1:
Match each of the following
Solution:
Example 2:
Workout the following:
i. 5³ + 4²
ii. 9ˆ5 - 7³
Solution:
i.
ii.
Example 3:
Work out the following:
i. (4³ × 3²) + 2³
ii. 9ˆ4 ⁄ 3³
Solution:
i.
ii.
