Sine of the times.

[Wes Loewer]

(06-12-2024 08:58 PM)Nigel (UK) Wrote:  (Added) Just to confuse things, \(\sin^{-1}x\) means the inverse sine of \(x\), not \(1/\sin(x)\)!

I tell my students, whatever you do, don't ever write \(\sin^{-2}x\).
Possible meanings:

• \(\sin^{-1}(\sin^{-1}(x))\)
• \((\sin^{-1}(x))^2\)
• \(1 \over \sin^2(x) \)