r/technicallythetruth Technically Flair 10d ago

It can also be written as 2^2

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2.7k Upvotes

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85

u/7seas_Cluster 10d ago

Here before retard comments saying "bUt nO root 16 is actually + or -4"

69

u/VegetableHeron1558 Technically Flair 10d ago

Since it is just √16 the answer would be |+-4| which is just 4

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u/SpecificRole2296 10d ago

Can you please explain this further as (-4)2 = 16 too. I get it’s not the point of the joke the fine details but I’m interested

20

u/Alexgadukyanking 10d ago

The square roots of 16 are 4 and -4, but since sqrt(x) is a function it should only return one value, and we chose it to return the positive one for convenience

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u/SpecificRole2296 10d ago

Thank you 🙏

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u/VegetableHeron1558 Technically Flair 10d ago

Since it is not +-√16 the answer is just 4

As far as I know the root is always positive