Brittneym
Brittneym
02-02-2017
Mathematics
contestada
Show that cos^2 330degrees=1
Respuesta :
TheHero
TheHero
03-02-2017
Actually it's not 1
330 in 4th quadratic is just 30 in 1st and cos is +ve
so you have
sqrt(3)/2 ^2 = 3/4 = 0.75
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