find the sum of two middle most terms of AP -4/3,-1,-2/3,...........13/3
Answers
Answer:
ap Kya hota h?????
Answer:
15,-11.....53
d = -11-(-15) = -11+15 = 4 d=4
L/aⁿ = a+(n-1)d
53= -15 + (n-1)4
53+15 = 4n-4
68+4 = 4n
72/4 = n
18 = n
we have to find the value of the middle term. so n/2 = 18/2 = 9th term will be the middle term
9th term = a+(9-1)d = -15+ (8)4 = -15+32 = 17
So, the answer is 17.
hope it helps.. :)
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+515,-11.....53
d = -11-(-15) = -11+15 = 4 d=4
L/aⁿ = a+(n-1)d
53= -15 + (n-1)4
53+15 = 4n-4
68+4 = 4n
72/4 = n
18 = n
we have to find the value of the middle term. so n/2 = 18/2 = 9th term will be the middle term
9th term = a+(9-1)d = -15+ (8)4 = -15+32 = 17
So, the answer is 17.
hope it helps.. :)
Click to let others know, how helpful is it
4.0
15 votes
THANKS 26
Report
Thanks it's helps
welcome... :)
The BrainAnswerer
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