Use a half-angle identity to find the exact value of sin pi/8
U add 6 to every number each time
5,11,17,23,29,35,41,47,53,59,65,71,78,84,90,96,101,108
108 is the 18th term
Answer:
The answer is (A)
Step-by-step explanation:
The answer is number 4. No, he is not correct and the correct answer is: 10r + 10