proof by induction

I don't understand what i have to do for 'prove true for n=k+1' Please Help!!

Original post by Amyherdman

I don't understand what i have to do for 'prove true for n=k+1' Please Help!!

Given that it is true for n=k and using this, prove that it is true for n=k+1. It's just algebra.

Original post by CharlieGEM

Given that it is true for n=k and using this, prove that it is true for n=k+1. It's just algebra.

but how do you use un+1 = 5un -4 ??

Original post by Amyherdman

I don't understand what i have to do for 'prove true for n=k+1' Please Help!!

This has helped a lot! thank you!!

Original post by Amyherdman

This has helped a lot! thank you!!

No worries!

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