Inverse of cosine does not yield correct answer
The above image is from gnome-calculator 3.36.0 in keyboard mode. The real answer should be around 2.09439
as demonstrated by this TI-92 Plus emulator.
This issue also appears with the inverse of sin.
The actual answer is π/6
.
The stuff that was scribbled out in the first image was irrelevant to this issue.
Edited by Rayyan Ansari