Question

find the common differnece ​

Answer 1

Answer:

soooooooooo sorry

don't know

Step-by-step explanation:

I'd-4045554439

pswd-12345678

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Answer 2

Answer:

Solution:

Let 'a' is the first term and d is the common difference of AP.

Given:

a27 - a7 = 84 [ an = a+( n-1)d ]

a + 26d - a+ 6d = 84

a -a + 26d - 6d = 84

26d - 6d = 84

20d = 84

d = 84/ 20

d= 21/5

Hence, the common difference of AP is 21/5.

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