Math, asked by amitnaykodi2012, 9 months ago

answer the following question with explanation please give me a correct answer please don't give a fake answers if you give me a correct answer so I mark as brinialist.​

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Answers

Answered by khyatipravadas
1

Step-by-step explanation:

hey your ans is 465 see the pic to get more informatiom about it

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Answered by BrainlicaLDoll
23

\boxed{\sf\: Answer = 465}

\dagNatural number starts from 1 upto \infinity and they are in the form of \bold\green{Arithmetic \:Progression (A.P)}

TO FIND : Sum of first 30 natural numbers.

EXPLANATION :

\boxed{\sf\:S_n=\frac{n}{2}(2a+(n-1)d)}

GIVEN :

  • n = 30
  • a = 1
  • d = 1
  • \sf\:S_{30}=?

\:\:\: \dagPutting the values in equation,

\longrightarrow \sf\: S_{30}=\frac{\cancel{30}}{\cancel{2}}(2\times1+(30-1)\times 1)\\ \\ \longrightarrow \sf\:S_{30}= 15\times (2+29)\\ \\ \longrightarrow \sf\: S_{30}=15 \times 31 \\ \\ \implies \sf\: \boxed{\sf\:S_{30}=465}

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