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frosja888 [35]
3 years ago
13

Show that cos^2 330degrees=1

Mathematics
1 answer:
Sholpan [36]3 years ago
4 0
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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