Question

If an ap is a=4 , n=7 & An= 4 find the value of D
answer:- option
i - 0
ii- 1
iii-3
iv- 2
please tell me fast this answer because today is my board exam​

Answer 1

$\underline{ \sf \fcolorbox{red}{pink}{ \huge{Solution :)}}}$

Given ,

a = 4

n = 7

nth term = 4

We know that , the general formula of an AP is given by

$\large \sf \fbox{a_{n} = a + (n - 1)d}$

Substitute the known values , we get

➡4 = 4 + (7 - 1)d

➡0 = 6d

➡d = 0

Hence , the value of d is 0

Therefore , Correct option is (i) = 0

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