Asked by Best
The second and fifth terms of a geometric progression (G.P) are 1 and ⅛ respectively. Find the:
A, common ratio;
B, first term;
C, eighth term.
A, common ratio;
B, first term;
C, eighth term.
Answers
Answered by
Reiny
term(2) = ar = 1
term(5) = ar^4 = 1/8
divide ....
ar^4/(ar) = 1/8 / 1
r^3 = 1/8
r = 1/2
sub into ar = 1 to find a
after that, use your definitions for term(8)
term(5) = ar^4 = 1/8
divide ....
ar^4/(ar) = 1/8 / 1
r^3 = 1/8
r = 1/2
sub into ar = 1 to find a
after that, use your definitions for term(8)
Answered by
Marvellous
Pls how did you get 1/2
Answered by
Theophilus Benson
Please I don't understand
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