Question

another maths question..

Answer 1

Answer:

Step-by-step explanation:

Since

Sn=4n2+n

Sn-1=4(n-1)2+n-1

Sn-1=4n2-7n+3

Now

Tn=(Sn)-(Sn-1)

Tn=4n2+n-4n2+7n-3

Tn=8n-3

Now,

T1=8×1-3=5

T2=8×2-3=13

T3=8×3-3=21

So required AP:

5,13,21......

Mark as brainliest

Answer 2

Hope it may help you !!!!!