In: Math
If the first term is 10 and the common ratio of a GP is 3, then write the first five terms of GP.
First term, a = 10
Common ratio, r = 3
We know the general form of GP for first five terms is given by:
a, ar, ar2, ar3, ar4
a = 10
ar = 10 × 3 = 30
ar2 = 10 × 32 = 10 × 9 = 90
ar3 = 10 × 33 = 270
ar4 = 10 × 34 = 810
Therefore, the first five terms of GP with 10 as the first term and 3 as the common ratio are:
10, 30, 90, 270 and 810
Therefore, the first five terms of GP with 10 as the first term and 3 as the common ratio are:
10, 30, 90, 270 and 810