How to find common ratio and common difference in ap and gp?
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in ap we substract 2nd term-1term=3rd term-2nd term
or
T2-T1=T3-T2
and
in gp
T2/T1 =T3/T2
or
T2-T1=T3-T2
and
in gp
T2/T1 =T3/T2
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second term - first term
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