00:01
Okay, so i have minus 1 to the n's power times 3 over n.
00:05
Okay, so this is a formula for our sequence, a sub n.
00:09
Okay, so a sub 1 equals minus 1 to the first times 3 over 1, which is minus 3.
00:17
And a sub 2 equals minus 1 square times 3 over 2, okay, which equals 3 over 2.
00:25
A sub 3 equals minus 1 to the third power times 3 over 3.
00:32
So i have this is minus 1.
00:38
A sub 4 equals and a sub 5 equals.
01:01
So here i have the first five terms of this sequence.
01:10
Oh, sorry, i think i made a mistake.
01:12
Here it should be 5...