Math, asked by notsogenius4, 1 year ago

if sum of P terms of an ap is 3 p square + 4 p.. find its n thh term

Answers

Answered by ak9384491

Answer:

6n +1

Step-by-step explanation:

Sp = 3p2 + 4p

tn ⇒ Sn - Sn-1

= (3n2 + 4n) - [3(n-1)2 + 4(n-1)]

= (3n2 + 4n) - [3(n2 - 2n + 1) + 4(n-1)]

= (3n2 + 4n) - [3n2 - 6n + 3 + 4n - 4]

= (3n2 + 4n) - [3n2 - 2n - 1]

= 3n2 + 4n - 3n2 - 2n + 1

= 6n + 1

Therefore the nth term is 6n + 1.

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notsogenius4: how to do it

ak9384491: For Sp we have 3n2 + 4p So for Sn it will be 3n2 +4p then if we find the sum of n terms and subtract it from its Sn-1 we will get Tn

notsogenius4: s i got

ak9384491: Pls Mark it as brainliest answer

notsogenius4: i asked how to add it as brainliest

ak9384491: you can put answer as brainliest after seven days .after seven days their will be mark above question of put anwer as brainliest. click on that.

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