Induction (1 Viewer)

[Fade1233]

Wait where am I going wrong?


first part is okay.

ii) Let.... Assume.....
RTP: T(n+1)= 2 cos(2(n+1) pi/3)

LHS= -T(n) - T(n-1)
-2( 2cos(2n pi/3) + 2cos (2(n-1)pi/3)
Since hold true for n then also true for n-1
-4(cos((2n-1)pi/3)cos(2pi/3))
= 2cos ((2n-1)pi/3)

>>>???>>>

 

[braintic]

"Since hold true for n then also true for n-1"

That is a nonsense statement.
This has to be part of your ASSUMPTION.

 

[Fade1233]

"Since hold true for n then also true for n-1"

That is a nonsense statement.
This has to be part of your ASSUMPTION.

It is but I dont know how to use latex so I didnt include assumption. Either way you didnt answer my question.