Question

The nth term of an AP is 7- 4n . find its commmon diffrence

Answer 1

$\huge\color{lightblue}\boxed{\mathbb{A}nswer:}$







$\boxed{see\: the\: attachment \: for \: your \: answer}$


Answer : Common Difference d = -4.



$\huge\color{red}\boxed{\mathbb{\ulcorner THANKS \urcorner}}$





Hope it helps!

Answer 2

Hii Mate !!

Here is your answer :

Question : The nth term of an AP is 7 - 4n . Find it's common difference.

Solution :

Let a be the first term and d be the common difference of the given AP.

Nth term = 7 - 4n [ Given ]

Find the first term ( T1 ) , by Substitute n = 1 in 7-4n , we will get

T1 = 7 - 4*1

T1 = 7 - 4.

T1 = 3.

Again , Substitute N = 2 in 7 - 4n , we get

T2 = 7 - 4 * 2

T2 = 7 - 8

T2 = -1.

Therefore,

Common difference ( D ) = T2 - T1 = -1 - 3 = -4.

Hence,

therefore the Common difference of the given AP is -4.


Hope it helps you ♥



BeBrainly..