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Trigonometry 9 Online
OpenStudy (zappy620):

Can (sin^2x+cos^2x=1) be (-sin^2-cos^2x=-1)?

OpenStudy (schoolcool):

Indeed Lol

OpenStudy (zappy620):

Are you able to do that? I am unsure since I haven't seen that form of the identity anywhere.

OpenStudy (zappy620):

Oh ok so theres nothing wrong with it then?

OpenStudy (schoolcool):

No theres not.

OpenStudy (zappy620):

Alright thanks for clearing that up :D

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