a) (1 – \(\sqrt{3}\))/2\(\sqrt{2}\)
b) (\(\sqrt{3}\) + 1)/2\(\sqrt{2}\)
c) (\(\sqrt{3}\) – 1)/2\(\sqrt{2}\)
d) (-\(\sqrt{3}\) – 1)/2\(\sqrt{2}\)
cos(75°) =__________________
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answerhappygod
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cos(75°) =__________________
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