Question

Ex 5) If for a sequence {tn}, tn= 5^n-2/4^n-3 show that
the sequence is a G.P. Find its first term and the
common ratio.​

Answer 1

Answer:

first term=16/5, common ratio=5/4

Step-by-step explanation:

For n=1,t¹=16/5

For n=2,t²=4

For n=3,t³=5

As t²/t¹=t³/t²=t^n/t^n-1=constant

So, terms are in G.P

Answer 2

Step-by-step explanation:

image may be light ,I have tried best so that you can understand