Mathematics
Mathematics, 13.12.2019 08:31, brandistrothma

If sin 18° = 0.3090, cos 18° = 0.9511, sin 22° = 0.3746, and
cos 22° = 0.9272, then what is cos 4º?

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If sin 18° = 0.3090, cos 18° = 0.9511, sin 22° = 0.3746, and
cos 22° = 0.9272, then what is cos...

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