Math, asked by paridabas17, 1 year ago

sum of first 7 terms of an ap is 49 and that of 17 terms is 289 find the sum of first n terms

Answers

Answered by ALTAF11

4

Hey Mate !!

Answer :-

Sn = n²

Step by step Explanation :-

Let a be first term of AP and d be common difference of AP !!

[ Refer attachment ] !!

Attachments:

Previous Question

Next Question

Similar questions

English, 7 months ago

व कोई भी पांच प्रहेलिका बनाए Sanskrit मे...

Hindi, 7 months ago

सदाचार यह संधि का उदाहरण है।...

English, 7 months ago

Though Peggy and Maddie made fun of Wanda, she gifted them her special drawings, what light does it throw on the character of Wanda Petronski? in long answer plz...

Chemistry, 1 year ago

Atoms of element B from hcp lattice and those of elementA occupies two thirds of tetrahedral voids what isvthe formula of the compound from by these elements A & B...

Biology, 1 year ago

explain the process of wool manufacturing in detail.

English, 1 year ago

hey guys i need some information about the donation process for Kerala.. how can we give donation for the people who r suffering...

Math, 1 year ago

solve graphically 2x-y-5=0 ; x-y-3=0 also find the coordinate of the points where the line meets the y axis...

Physics, 1 year ago

derive expression for ohm's law applied to complete circuit...