(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

given:

Vn+1=Vn*cos(pi/2^(n+2)) and Vn= pi/2

2. Relevant equations

Write Vn in terms of n

3. The attempt at a solution

how can i start this. I already know that -1<cosx<1 and i've already proved that this sequence is a negative sequence. Then our teacher said if its possible to write Vn in terms of n?

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# Is it possible to this sequence?

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