Question

Find common difference of the AP whose first term is -6 & 7th term is 36

Answer 1

Answer:

Find common difference of the AP whose first term is -6 & 7th term is 36

Step-by-step explanation:

By givens

a=-6  and A7=36

then

a+6d=36

-6+6d=36

6d=6+36

6d=42

d=7

Answer d=7

Answer 2

Answer:

common difference is 7

Step-by-step explanation:

first term, a = -6

7th term, $a_{n}$ = 36

d = common difference

putting these values in the formula:

$a_{n}$ = a + (n - 1)d

36 = -6 + (7 - 1)d

6d = 36 + 6

d = 42/6

d = 7