Question

'n' is an odd number. Which of the following statement is true?
2
(1) (2" +1) is divisible by 5
27 (2" +1) is divisible by 3
(3) (2" – 1) is divisible by 5
(4) (2" – 1) is divisible by 3​

Answer 1

Answer:

2) (2"+1) is divisible by 3

Answer 2

Answer:

option 2 is correct i think