What is 1 over square root of 5?

1 Answer
Alan P. · Don't Memorise
Sep 8, 2015

Using the primary square root of 5:
#1/sqrt(5) = 0.447214#

Explanation:

There really is not a simple way to evaluate #sqrt(5)# other than by using a calculator (or some similar technology).

#sqrt(5)~~2.236068# (using calculator)

#1/sqrt(5) ~~0.447214# (this could have been done by hand, but I had the calculator out already)

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