Math, asked by lilmag8248, 9 months ago

If a=8, an=62, Sn=210 then find n and d?

Answers

Answered by anjalikumari1642

1

Answer:

sn=210

sn=n/2(a+l)

210=n/2(8+62)

n/2×70=210

n=210×2/70=3×2=6.

Previous Question

Next Question

Similar questions

India Languages, 4 months ago

1. porkudam ilakkana kurippu tharuga...

Political Science, 4 months ago

What do you mean by Indian Constitution? Only Sky will answer., dekh lo screen shot bheja h , trust nhi h nah...

Political Science, 4 months ago

how is power shared among various political parties pressure groups and movements...

History, 9 months ago

Why were the upper class Muslim anti -British?

Math, 9 months ago

If cost of one balloon is ® 25 find cost of 5 balloon ?

Computer Science, 1 year ago

- Define Icons, Taskbar.

Biology, 1 year ago

how we can conserve vegetation and wildlife ...

Math, 1 year ago

factorise 7x square - 15x + 2...