# How do you determine the first 5 terms if #a_1=2# and #r=3#?

##### 1 Answer

Jun 9, 2018

#### Explanation:

#"since common ratio "r=3#

#"we are dealing with a geometric sequence"#

#"to obtain a term in the sequence multiply the previous"#

#"term by r"#

#a_1=2#

#a_2=3xx2=6#

#a_3=3xx6=18#

#a_4=3xx18=54#

#a_5=3xx54=162#