Math, asked by manaskhaira, 8 months ago

The common difference of an AP whose gth term from the last is 30 and last term is 65, is

Answers

Answered by Hɾιтհιĸ
14

MARK AS BRANLIEST PLEASE,

ITS NOTGTERM, IT'S 8TERM

let the AP : a, a+d, a+2d ......

to calculate the nth term of an AP from last, we need to write it in reverse order

New AP : 65, 65+d, 65+2d

Let the common difference be D

D= a2-a1

D= (65+d)-65

D= 65+d-65

D= d

Now,

the 8th term =30

a1+(8-1)D = 30

65+7d =30  

7d=30-65

d= -35/7

d= -5

Answered by aadishree7667
8

The Above Ans is perfect....♡

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