Mixing
Sum of first 25 terms of AP whose first four terms
0
$begingroup$
Find the sum of first $25$ terms of an AP whose first four terms are
$1, log_yx,log_zy$ and $-15cdot log_xz$.
I made equations from given data but they won't help. Something seems missing.
sequences-and-series
edited Jan 3 at 15:52
amWhy
1
asked Jan 3 at 12:14
Ice InkberryIce Inkberry
336112
$endgroup$
add a comment |
0
$begingroup$
Find the sum of first $25$ terms of an AP whose first four terms are
$1, log_yx,log_zy$ and $-15cdot log_xz$.
I made equations from given data but they won't help. Something seems missing.
sequences-and-series
edited Jan 3 at 15:52
amWhy
1
asked Jan 3 at 12:14
Ice InkberryIce Inkberry
336112
$endgroup$
2
$begingroup$
If the four numbers are $$1,1+d,1+2d,1+3d$$ $$(1+d)(1+2d)(1+3d)=-15$$
$endgroup$
– lab bhattacharjee
Jan 3 at 12:20
$begingroup$
@lab That's really sleek. Didn't notice!
$endgroup$
– Ice Inkberry
Jan 3 at 12:21
add a comment |
0
0
0
1
$begingroup$
Find the sum of first $25$ terms of an AP whose first four terms are
$1, log_yx,log_zy$ and $-15cdot log_xz$.
I made equations from given data but they won't help. Something seems missing.
sequences-and-series
edited Jan 3 at 15:52
amWhy
1
asked Jan 3 at 12:14
Ice InkberryIce Inkberry
336112
$endgroup$
Find the sum of first $25$ terms of an AP whose first four terms are
$1, log_yx,log_zy$ and $-15cdot log_xz$.
I made equations from given data but they won't help. Something seems missing.
sequences-and-series
sequences-and-series
edited Jan 3 at 15:52
amWhy
1
asked Jan 3 at 12:14
Ice InkberryIce Inkberry
336112
edited Jan 3 at 15:52
amWhy
1
asked Jan 3 at 12:14
Ice InkberryIce Inkberry
336112
edited Jan 3 at 15:52
amWhy
1
edited Jan 3 at 15:52
amWhy
1
edited Jan 3 at 15:52
amWhy
1
1
asked Jan 3 at 12:14
Ice InkberryIce Inkberry
336112
asked Jan 3 at 12:14
Ice InkberryIce Inkberry
336112
asked Jan 3 at 12:14
Ice InkberryIce Inkberry
336112
336112
2
$begingroup$
If the four numbers are $$1,1+d,1+2d,1+3d$$ $$(1+d)(1+2d)(1+3d)=-15$$
$endgroup$
– lab bhattacharjee
Jan 3 at 12:20
$begingroup$
@lab That's really sleek. Didn't notice!
$endgroup$
– Ice Inkberry
Jan 3 at 12:21
add a comment |
2
$begingroup$
If the four numbers are $$1,1+d,1+2d,1+3d$$ $$(1+d)(1+2d)(1+3d)=-15$$
$endgroup$
– lab bhattacharjee
Jan 3 at 12:20
$begingroup$
@lab That's really sleek. Didn't notice!
$endgroup$
– Ice Inkberry
Jan 3 at 12:21
2
2
$begingroup$
If the four numbers are $$1,1+d,1+2d,1+3d$$ $$(1+d)(1+2d)(1+3d)=-15$$
$endgroup$
– lab bhattacharjee
Jan 3 at 12:20
$begingroup$
If the four numbers are $$1,1+d,1+2d,1+3d$$ $$(1+d)(1+2d)(1+3d)=-15$$
$endgroup$
– lab bhattacharjee
Jan 3 at 12:20
$begingroup$
@lab That's really sleek. Didn't notice!
$endgroup$
– Ice Inkberry
Jan 3 at 12:21
$begingroup$
@lab That's really sleek. Didn't notice!
$endgroup$
– Ice Inkberry
Jan 3 at 12:21
add a comment |
0
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2
$begingroup$
If the four numbers are $$1,1+d,1+2d,1+3d$$ $$(1+d)(1+2d)(1+3d)=-15$$
$endgroup$
– lab bhattacharjee
Jan 3 at 12:20
$begingroup$
@lab That's really sleek. Didn't notice!
$endgroup$
– Ice Inkberry
Jan 3 at 12:21