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

True or False: The intersection of two planes in R3 is always a line.

3. The attempt at a solution

I'm pretty sure that this statement is true because two planes can only be parallel, or they must intersect in a line because the are infinate.

But I have no ideas on how to prove this mathematically. Any ideas?

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# Homework Help: Intersection of 2 planes

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