Consider the following arithmetic sequence 2 92 7 a Identify
Consider the following arithmetic sequence.
2, 9/2, 7....
(a) Identify d and a1.
(b) Write the next three terms.
| d | = | |
| a1 | = |
Solution
a) solution
d=second term of AP-first term of AP
d=(9/2)-2=2.5
a1= first term os sequence=2
b) solution
a4=a1+3*d=2+3*2.5=9.5
a5=a1+4*d=2+4*2.5=12
a6=a1+5*d=2+5*2.5=14.5
