Question

Is 100 a term of arithmetic sequence 12,23,34...
What about 1000?

Answer 1

Answer:

Yes , 100 is the 9th term of this A.P

Answer 2

Answer:

YES 100 is 9th term and 1000 not comes in this sequence accurately

Step-by-step explanation:

a=12 d=23-12=11 n=? an=100

an=a+(n-1)d

Putting values

100=12+(n-1)11

100=12+11n-11

100=12-11+11n

100=1+11n

100-1=11n

99=11n

n=99/11

n=9

Same putting value an =1000

an=a+(n-1)d

1000=12+(n-1)11

1000=12+11n-11

1000=12-11+11n

1000=1+11n

1000-1=11n

999=11n

n=999/11

n=90.8181818

This is not accurate so 1000 not ome in this sequence of ap