While taking the ap, why we should we take a in middle term..where in some question a is not taken in middle..
Like in some questions..sum of 4 Consuctive terms.. why the assumption of ap is taken like that?
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take those terms as a-3d,a-d,a+d,a+3d
where common difference is 2d
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where common difference is 2d
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varshakalpakkam2:
Y we should tajr .
Y should we take ap like that
what??
if the sum of them is given so you can find a
it makes question easy
Kk
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