Question 1118104
The common difference and last terms of an A.p are 0.8 and 21.8 respectively.if there are 23 terms in the sequence,find its first term.
d = 0.8
a(23) = 21.8
-----
a(23) = a(1) + 23*0.8 = 21.8
a(1) = 21.8-23*0.8 = 3.4
------------
Cheers,
Stan H.
------------