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Numerade Educator



Problem 33 Easy Difficulty

Describe in words the region of $ \mathbb{R}^3 $ represented by the equation(s) or inequality.

$ x^2 + y^2 + z^2 = 4 $


a sphere centered at the origin with radius 2 center (0,0,0)


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Video Transcript

describing worse The region of our three represented by the equation X square plus twice workers. This works for s So this is like us fair. You are three. And if we do the standard sparing question X minus, that's not square. Plus why went wine elsewhere? Knox plus Z once see, not square equals R Square and compare it to over equation we'LL find here Center That's not why not. And Xena is just zero zero zero. So that means I was fair centered at the our region. And what's the square? So arse works for? And our course is a positive number. So we have or equals two. It means the readers of despair is too. So that is thie the wrath of our inclusion.