In an A.P,if common difference is 3,then a3-a9=_____
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Answer:
given , d = 3
to find .: a3 - a9
= ( a +2d) - ( a + 8d)
= a + 2d - a - 8d
= - 6d
= - 6 × 3
= -18. IS THE CORRECT ANSWER
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