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Cos(65º) - 1 - cos(130) 2 O A. True ОО B. False
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Cos(65º) - 1 - cos(130) 2 O A. True ОО B. False

User Meesha
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\cos (65\circ)\text{ = }0.42261826\text{ }\sqrt[]{(\cos ^(-1)(130\circ))/(2)}=1.3213938

User JEscala
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