Question

In an A.P,if common difference is 3,then a3-a9=_____
A) -6
B) 6
C) -2
D) 2

Answer 1

Answer:-

-18

Step-by-step explanation:

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Answer 2

Answer:

given,

d = 3

a3 - a9

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

= a + 2d - a - 8d

= - 6d

= - 6 × 3

= - 18 is the correct answer