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if a,b and c are in arithmetic progression then prove that 2b=a+c?

Srijoy Maitra , 8 Years ago
Grade 11
anser 2 Answers
rajesh

Last Activity: 8 Years ago

since b=a+c/2
therefore 2b=a+c
 
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Vijay Mukati

Last Activity: 8 Years ago

Dear Student,

If a, b and c are in AP, this means that the comman difference between these numbers will be equal.
i.e. b – a = c – b or 2b = a+c.

Thanks.

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