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inverse trig functions
Earthenrock
Registered User regular
Registered User regular
I can't seem to remember how to evaluate inverse tan/sec and what have you.
(arc sine/ arc tan if you want to call them those)
an example would be
arc secant(-1) or arc sine(1/2)
If someone could tell me how to do these manually it would help a lot!
(arc sine/ arc tan if you want to call them those)
an example would be
arc secant(-1) or arc sine(1/2)
If someone could tell me how to do these manually it would help a lot!
Earthenrock on
0
Posts
plus I need an exact answer like 2π/3, I'm integrating definite integrals, so I'm doing this at the very end.
Thanks for the reference though.
Arcsin(1/2) = ?
1/2 = sin(?)
That means that ? is the angle of triangle with an opposite side of 1/2 and a hypotenuse of 1. If you look at the unit circle, that is a triangle with an angle of 30 degrees:
Therefore, arcsin(1/2) is 30 degrees or pi/6 radians.
Thanks a bunch guys.