What is the 8th term in the series 1, 4, 9, 18, 35, 68, . . ?
Answers
Answered by
9
for each one, start with adding 3, then multiplying 2 on top of the corresponding number and subtracting 1 before adding the number gotten to the original number
1 + 3 = 4
4 + 5 = 9
9 + 9 = 18
18 + 17 = 35
35 + 33 = 68
68 + 67 = 135
135 + 133 = 268
268 + 265 = 533
533 should be your answer
hope this helps
1 + 3 = 4
4 + 5 = 9
9 + 9 = 18
18 + 17 = 35
35 + 33 = 68
68 + 67 = 135
135 + 133 = 268
268 + 265 = 533
533 should be your answer
hope this helps
Rohanfighter:
how did you get it?
wait that doesn't make sense
it isn't consistent
It's a series.. it has to stay consistent
oh wait.. i see what you did.. never mind
just answer it.. not sure which one he wants
yeah i saw afterwards
Answered by
33
as we see the series 1,4,9,18......
we see that
2¹-1 = 1
which is first term
2²-0 = 4
which is second term
2³+1 = 9
third term
2⁴+2 = 18
fourth term
2^5 +3 = 35
fifth term
2^6+4 = 68
sixth term
2^7+5 = 133
seventh term
2^8+6 = 262
eighth term so answer is 262
we see that
2¹-1 = 1
which is first term
2²-0 = 4
which is second term
2³+1 = 9
third term
2⁴+2 = 18
fourth term
2^5 +3 = 35
fifth term
2^6+4 = 68
sixth term
2^7+5 = 133
seventh term
2^8+6 = 262
eighth term so answer is 262
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