Math, asked by 1237125, 4 months ago

If sum of n terms of an AP is 2n2

– 3n. Find its nth term, common difference and 50th term
pls give ans with step by step explanation​

Answers

Answered by preethamgshiva2004
4

Answer:

Step-by-step explanation:

Attachments:
Answered by saniabano94556
2

S1 = 2×1+3×1

S1=5

S2= 2×4+3×2

S2= 14

a1=S1 = 5

S2- S1 =a2

a2 =9

d= a2- a1

=9-5

d = 4

a n = a+(n-1)d

a n= 5× (n-1)4

a n =4n-1

a50 = a+49d

= 5+49× 4

= 105

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