which of the following is a counter example for the given statement 2^n+1 is divisible by 3
a=1
b=3
c=2
d=5

Question

which of the following is a counter example for the given statement 2^n+1 is divisible by 3
a=1
b=3
c=2
d=5

anonymous · Answer

Let's see!
2^1+1=3 (divisible by 3)
2^3+1=9 (divisible by 3)
2^2+1=?
2^5+1=?
Give it a try! 
Tell us what do you get please!

anonymous · Answer

okay thank you !

anonymous · Answer

What did you get?

anonymous · Answer

@alex1601 Could you please tell us what did you get?
We are here to help you!

anonymous · Answer

ok so it wasent a so im thinking its b

anonymous · Answer

b isn't because of this:
2^3+1=8+1=9 (divisible by 3)
What about c?
2^2+1=?

anonymous · Answer

okay ill try that one and ill tell you in a bit if it was right

anonymous · Answer

Great! Take your time.

anonymous · Answer

rafabc02 yes the answer was c thank you !

anonymous · Answer

You are welcome! 
Thanks for the "best response"!
Have a great night!

anonymous · Answer

welcome!
..you too !