Find the middle term of the A.P. 213, 205, 197, ..... 37.
Answers
Answered by
11
●Please mark it brainliest
Answer :
Given : a=213 d= -8 an=37
An = a+(n-1)d
37 = 213 + (n-1)-8 = 213 - 8n + 8
= 221 - 8n
37 - 221 = -8n
-184 = -8n
n = 23
Middle term = n+1 /2 = 12th term
a12 = a + 11d = 213 + 11(-8)
= 213 - 88
a12 = 125
Answered by
5
Answer:
the answer is
Step-by-step explanation:
in this Q a=213
d=a2-a1=205-213=-8
now
37=a+(n-1)d
37=213+(n-1)-8
37=213-8n+8
37=221-8n
8n=221-37=184
n=8/184=23
the middle term ap 23/2=11.5 which is=12
okk bro
Similar questions