Question

What is the common difference of an A.P. whose nth term is tn=2n-4

Answer 1

hey mate here is your answer
tn=2n-4
t1=2×1-4
2-4
t1=-2
t2=2×2-4
4-4
t2=0
t3=2×3-4
6-4
t3=2
therefore,
A. P=-2, 0,2
so,
common difference is 2
please mark me as a brainliest

Answer 2

The common difference of an A.P. is 2.

Step-by-step explanation:

Given : An A.P. whose nth term is $t_n=2n-4$.

To find : What is the common difference of an A.P. ?

Solution :

An A.P. whose nth term is $t_n=2n-4$.

Put n=1, to get first term

$t_1=2(1)-4=-2$

Put n=2, to get second term

$t_2=2(2)-4=0$

The common difference is $d=t_2-t_1$

$d=0-(-2)$

$d=2$

Therefore, the common difference of an A.P. is 2.

#Learn more

Write the common difference of an A.P. whose nth term is an= 3n + 7.

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