Question

if tn=2n+3 then what will be the value of
S10​

Answer 1

Answer:

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Step-by-step explanation:

ANSWER

If Tn=2n+3 then,

T1=(2×1)+3=2+3=5

T2=(2×2)+3=4+3=7

T3=(2×3)+3=6+3=9

Therefore, S310 is the sum of T1, T2 and T3 that is:

S10=T1+T2+T3=5+7+9=21

Hence, S10=21.

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