Question

AnyBody ????????????????????????????????​

Answer 1

Answer:

A) 422

Step-by-step explanation:

10^n-1 means (10^n)-1

=(10000…….n no of 0)-1

=999999 ……….n nos of 9

9+9+9+………..n nos of 9=9n

9n=3798 , n=3798/9=422

n=422

Answer 2

Answer:

n= 422.............this is the ans