Math, asked by johnsandeep17p9rx4k, 1 year ago

answer me plse what is the value of k

Attachments:

Answers

Answered by Shreyas6788
1
Hope this helps you :)
Attachments:
Answered by NancyLakra006
0
a(n-1) = a + (n-2)d
k+9 = a + nd -2d
nd = k+9-a+2d ---(i)

a(n) = a + (n-1)d
2k-1 = a + nd - d
2k-1 = a + k+9-a+2d-d (using (i))
k = 10+d ----(ii)

a(n+1) = a + nd
2k + 1 = a + nd
2(10+d) = a + k + 9-a+2d
20+2d = k +9 +2d
k= 11

Similar questions