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OpenStudy (anonymous):
simplify (sin 2 A)(cotA)(secA)
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OpenStudy (anonymous):
Do you need me to show work?
OpenStudy (anonymous):
yes please
OpenStudy (anonymous):
(sin2A)(cotA)(secA) (2sinAcosA)(cosA/sinA)(1/cosA) Now just cross cancel. 2cosA
OpenStudy (anonymous):
how did you get (2sinAcosA) when you started with sin2.... where did the cosA come about
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