GEOMETRIC SEQUENCE || GRADE 10 MATHEMATICS Q1

Introduction to Geometric Sequences00:00:13

Explanation of geometric sequences as sequences where each term is multiplied by a constant number called the common ratio, contrasting them with arithmetic sequences where a number is added.

Defining the Common Ratio00:01:37

Details on how to find the common ratio (r) by dividing any term in the sequence by the preceding term, including examples to test if a sequence is geometric.

Calculating the Nth Term00:06:48

Introduction to the formula a_n = a_1 * r^(n-1) to find any term in a geometric sequence, demonstrated with a step-by-step calculation for the tenth term of a given sequence.

Solving Real-World Problems00:10:46

Practical application of geometric sequences to model the spread of an infection, calculating the number of cases on a specific day using the nth term formula.