find the common difference of Ap 1upon 2B,1-6b upon2b, 1 - 12 bupon 2b.
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Answer:
Step-by-step explanation:1/2b,1-6b/2b,1-12b/2b
To find (d) a2-a1
So, 1-6b/2b-1/2b
=-6b/2b
-3 is ans
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