Question

write the
first four . terms of the sequence
defined by :
i) an=4n2+3​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

let n=1

so, a1=4(1)^2+3 = 4+3=7

let n=2

so, a2=4(2)^2+3=16+3=19

let n=3

so, a3=4(3)^2+3=36+3=39

commen difference (d)=a2-a1 , d=a3-a2

d=19-7 ,d=39-19

d=12 ,d=20

commen difference is not equal so it is not an A.P. so we can't find its 4 terms