How do you find the first term in the arithmetic sequence __, 8 1/3, 7, 5 2/3, 4 1/3, ...?
1 Answer
Jul 2, 2018
Explanation:
#"the common difference d of the sequence is"#
#•color(white)(x)d=a_2-a_1=a_3-a_2=a_4-a_3#
#d=7-8 1/3=5 2/3-7=-4/3#
#rArra_1=a_2-d=8 1/3-(-4/3)=29/3=9 2/3#
