Question

The first 4 terms of an AP having the
first term 10 and common difference
3 is​

Answer 1

Given :

• First term (a) = 10
• Common difference (d) = 3

To Find :

• First four terms

Solution :

⇒a1 = a

⇒a1 = 10

___________________

⇒a2 = a + d

⇒a2 = 10 + 3

⇒a2 = 13

___________________

⇒a3 = a + 2d

⇒a3 = 10 + 2(3)

⇒a3 = 10 + 6

⇒a3 = 16

__________________

⇒a4 = a + 3d

⇒a4 = 10 + 3(3)

⇒a4 = 10 + 9

⇒a4 = 19

_____________________

$\therefore$ A.P is 10,13,16,19....