(sinθ-cosθ)^2

= sin^2 θ-2sinθcosθ-cos^2 θ

is this all?? what else can i do?

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- Mar 19th 2010, 04:19 AMsomanyquestionsTrigonometric identities.
(sinθ-cosθ)^2

= sin^2 θ-2sinθcosθ-cos^2 θ

is this all?? what else can i do? - Mar 19th 2010, 04:38 AMpickslides
Not sure what you are trying to do but

Also

and

Good luck! - Mar 19th 2010, 08:11 AMskeeter