Question

the 6th term of an arithmetic series is twice the 3rd term and the first term is 3. find the common difference and the 10th term.
the 6th term of an arithmetic series is twice the 3rd term and the first term is 3. find the common difference and the 10th term.
@Mathematics

Answer 1

you should now be able 2 solve this one on your own..

Answer 2

correctly said
ap is the best thing in maths

Answer 3

The common difference is 2 ?

Answer 4

The 10th term is 2, right ?

Answer 5

sorry i meant 21

Answer 6

d=2 and a10 is 30

Answer 7

if d=2 then a3=7....a6=13??

Answer 8

d is 3 i am sorry

Answer 9

my mistake

Answer 10

could you explain how you got 3, i want to see where i got it wrong..

Answer 11

a6=a+(n-1)d
a3=a+(n-!)d
a+5d=2a+4d

Answer 12

d=a

Answer 13

and so its a=3

Answer 14

oh ! got it ! thanks ! :)