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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