Sn is 5n^2+3n find the n term and also find the 10 term
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Sn=5n2+3n
S1=a1=5*1*1+3*1=8
S2=a1+a2=5*2*2+3*2=20+6=26
a2=26-8=18
a=8
d=10
a10=a+(n-1) d
a10=8+(10-1) 10
= 8+90=98
10th term is 98
Hope it helps....
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