How do you write the first five terms of the geometric sequence #a_1=1, r=1/2#?
2 Answers
Jul 26, 2017
Explanation:
Geometric sequences are defined by the formula
When
When
Jul 26, 2017
Explanation:
#"the standard terms of a geometric sequence are"#
#a,ar,ar^2,ar^3,........ ,ar^(n-1)#
#"where a is the first term and r the common ratio"#
#"to obtain a term in the sequence multiply the previous"#
#"term by r"#
#"here "a=a_1=1" and "r=1/2#
#a_1=1#
#a_2=1xx1/2=1/2#
#a_3=1/2xx1/2=1/4#
#a_4=1/4xx1/2=1/8#
#a_5=1/8xx1/2=1/16#