Thursday
July 24, 2014

Homework Help: calculus

Posted by Elizabeth on Sunday, February 11, 2007 at 12:16pm.

can anyone tell me if tan-1x= 1 over tan x?

No. They are different. tan^-1 (x) is a frequently used way of writing arctan x, which means the angle whose tangent is x.

tan (tan^-1 x) = x

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