1.

Find the middle term of AP -15,-11,-7,-3...49 ​

Answer»

Answer:

Ans:- 9

Step-by-step explanation:

The formula of an A.P.

TN = a + (n - 1)d

but to find middle:- n/2

therefore: tn = a + (n - 1) X d

substituting the values,

49 = -15 + (n - 1)X 4

(n - 1) = 49 + 15 / 4

n - 1 = 16

n = 17

therefore:- n is odd so middle term would be (n+1)/2

= 18/2 = 9

I HOPE this helps out .



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