What is tan(arctan 10)?

1 Answer
MeneerNask ยท Kevin B.
Feb 5, 2015

tan and arctan are two opposite operations. They cancel each other out. Your answer is 10.

Your formula in words would be:

"Take the tangent of an angle.
This angle has a size that 'belongs' to a tangent of 10"

arctan 10=84.289^0 and tan 84.289^0=10
(but you don't have to do all this)

It's a bit like first multiplying by 5 and then dividing by 5.
Or taking the square root of a number and then squaring the result.

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