Question

In an A.P,if common difference is 3,then a3-a9=_____

Answer 1

Answer:

Hello buddy !

a3 - a9 = (a+2d) - (a+8d)

= 2d - 8d

= -6d

= -6 × 3 = -18

Mark as brainliest .

Answer 2

Answer:

Let first term be a and common difference is given 3.

A.T.Q

a3-a9

= (a+2d)-(a+8d)

=a+2d-a-8d

=-6d

=-6×3

=-18