find the middle term of an Ap 6,13,20...216
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Answered by
2
a = 6
d= 7
L = 216
=> a + (n-1) d = 216
=> 6 + (n-1) 7 = 216
=> (n-1) 7 = 210
=> n-1 = 30
n = 31
Middle term is 16
T16 = a + 15d
= 6 + 15*7
= 6 + 105
= 111
d= 7
L = 216
=> a + (n-1) d = 216
=> 6 + (n-1) 7 = 216
=> (n-1) 7 = 210
=> n-1 = 30
n = 31
Middle term is 16
T16 = a + 15d
= 6 + 15*7
= 6 + 105
= 111
Answered by
1
a=6 an=216 d=7
216=6+(n-1)7
30=n-1
n=31
middle term = 31+1/2=16
a16=6+15(7)
=111 is the term
216=6+(n-1)7
30=n-1
n=31
middle term = 31+1/2=16
a16=6+15(7)
=111 is the term
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