Question

. किसी समान्तर श्रेणी का nवा पद Tn=
{n([n×n]+5)}/4
हो तो श्रेणी ज्ञात करो।
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Answer 1

Answer:

sorry but I don't know Hindi but I will try to do it j don't know whether I am right or wrong

Step-by-step explanation:

(n(n+n)+5)4

n(2n)+5×4

n(2n)20

n×2n=20

3n=20

n=20/3

n=6.66