My Math Forum

My Math Forum (http://mymathforum.com/math-forums.php)
-   Trigonometry (http://mymathforum.com/trigonometry/)
-   -   Inverse Trig problem (http://mymathforum.com/trigonometry/341083-inverse-trig-problem.html)

theguest July 2nd, 2017 09:37 PM

Inverse Trig problem
 
arcsine(sin(3pi/4))
I got pi/4 as the answer, but it's incorrect
Can anyone help?

skipjack July 2nd, 2017 11:33 PM

sin(3$\pi$/4) = sin($\pi$/4) = 1/√2, so arcsin(sin(3$\pi$/4)) = $\pi$/4, not 3$\pi$/4.


All times are GMT -8. The time now is 04:14 AM.

Copyright © 2017 My Math Forum. All rights reserved.