What is the 50th digit of 1/7?
What is the 50th digit of 1/7?
Approach: 1/7 has period 142857 (length 6). 50 mod 6 = 2.
4. Second digit of 142857.
Follow-up: What is the 100th digit?
Key concepts: repeating decimals.
What is the 50th digit of 1/7?
Approach: 1/7 has period 142857 (length 6). 50 mod 6 = 2.
4. Second digit of 142857.
Follow-up: What is the 100th digit?
Key concepts: repeating decimals.