Help with a Trig Identity Problem

If we establish an identity, sinAcscA - sin2A could equal which of the following quantities?

1
cos^(2) x A
sin^(2) x A – 1
tan^(2) x A

thanks

Quote:

---

Originally Posted by andy11

If we establish an identity, sinAcscA - sin2A could equal which of the following quantities?

1
cos2A
sin2A – 1
tan2A

thanks

---

<-- I had to be a bit of an oracle here!





-Dan