Question
Write an A.P. whose first term is a and common difference is d in each of the following.
$a = 10, d = 5$
$a = 10, d = 5$
✓
Answer
$a = 10, d = 5$
Let $a_1 = a = 10$
Since, the common difference $d = 5$
Using formula $a_{n + 1} = a_n + d$
Thus, $a_2 = a_1 + d = 10 + 5 = 15$
$a_{3 =} a_2 + d = 15 + 5 = 20$
$a_4 = a_3 + d = 20 + 5 = 25$
Hence, An A.P with common difference $5$ is $10, 15, 20, 25,….$
Let $a_1 = a = 10$
Since, the common difference $d = 5$
Using formula $a_{n + 1} = a_n + d$
Thus, $a_2 = a_1 + d = 10 + 5 = 15$
$a_{3 =} a_2 + d = 15 + 5 = 20$
$a_4 = a_3 + d = 20 + 5 = 25$
Hence, An A.P with common difference $5$ is $10, 15, 20, 25,….$
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