How do you find the exact value of #tan^-1 1#?

↳Redirected from "How do you calculate the Gibbs Free Energy change of a reaction?"
1 Answer
Daniel L.
Sep 28, 2016

See explanation.

Explanation:

If you are looking for #tan^-1 1# then you are looking for an acute angle in a triangle where both catheti are equal. Tangent of an angle is a quotient of a cathetus being one of the angle's sides and the opposite one.

The triangle with right angle and 2 equal catheti is an isosceles triangle so its both acute angles are #45^o# or #pi/4rad#.

So finally we can write that #tan^-1 1=pi/4#

Related questions
See all questions in Basic Inverse Trigonometric Functions
Impact of this question
2760 views around the world
You can reuse this answer
Creative Commons License