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

A = { pi + 2k pi / k [itex]\in[/itex] Z }

B = {(- pi / 3) + (2k pi / 3 ) / k [itex]\in[/itex] A }

Prove that A C B

2. Relevant equations

A C B = [itex]\forallX[/itex]E E : x [itex]\ni[/itex] A [itex]\Rightarrow[/itex] X [itex]\ni B[/itex]

3. The attempt at a solution

[itex]\ni[k E Z ][/itex]: x = pi + 2k pi

[itex]\ni[k E Z ][/itex]: x = pi ( 1 + 2k)

i'm sure i need to get a k and replace it with k' to prove that it belongs to B

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# Homework Help: Prove that A C B

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