Asked by james
the 6th term of an AP is 15 and the 8th term is 27 find the 5th term
Answers
Answered by
mathhelper
These are routine questions, you jus HAVE TO know how to do these.
term6 = a + 5d = 15, just using the definitions
term8 = a + 7d = 27
subtract them:
2d =12
d = 6
sub back: a + 5d = 15
a + 30 = 15
a = -15
term5 = a + 4d = .....
term6 = a + 5d = 15, just using the definitions
term8 = a + 7d = 27
subtract them:
2d =12
d = 6
sub back: a + 5d = 15
a + 30 = 15
a = -15
term5 = a + 4d = .....
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