please guys please solve it please ...
please solve it ...
chapter AP. as per Rd .
Answers
Step-by-step explanation:
Sn=3n2 by given condition.
∴Tn=Sn−Sn−1=3n2−3(n−1)2=6n−3.
Putting n=1,2,3,________
The series is 3,9,15,21,______
Genus is a taxonomic rank in the biological classification that exists below family and above species.Order is a taxonomic rank that exists below class and above family. e.g. order primatesFamily is a taxonomic group containing one or more related genera. In plants, families are categorised on the basis of vegetative and reproductive features.Class is a taxonomic rank (a taxon) consisting of organisms that share a common attribute; it is further divided into one or more orders. In the biological classification of organisms, a class is a major taxonomic rank below the phylum (or division) and above the order
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