which is the first negative term it's urgent please
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-3 is the first negative trem
vibavna03:
steps??
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HII MATE HERE IS YOUR ANSWER
this is the A. P. series
20,17,14,.....
a = 20 , d = 17-20 = -3
first negative term is less than 0 then
Tn <0
a + (n-1)d <0
20 + (n-1) (-3)<0
-3n + 3 < -20
-3n < -20 - 3
-3n <-23
n < 23/3
n <7.66
Tn = a +(n-1)d
Tn= 20 + (8-1)(-3)
Tn= 20 + -21
Tn = -1
That means -1 is the first negative term
n = 8 approximately.
I HOPE IT WILL HELP YOU
this is the A. P. series
20,17,14,.....
a = 20 , d = 17-20 = -3
first negative term is less than 0 then
Tn <0
a + (n-1)d <0
20 + (n-1) (-3)<0
-3n + 3 < -20
-3n < -20 - 3
-3n <-23
n < 23/3
n <7.66
Tn = a +(n-1)d
Tn= 20 + (8-1)(-3)
Tn= 20 + -21
Tn = -1
That means -1 is the first negative term
n = 8 approximately.
I HOPE IT WILL HELP YOU
thanks a lot
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