Mathematics, 22.03.2020 19:32, Cherrykisses101

Trigonometry
Angle Sum and Difference, Double Angle and Half Angle Formulas
Find the exact value of:
Cos 20* cos 45* + sin 20* sin 45*

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Trigonometry
Angle Sum and Difference, Double Angle and Half Angle Formulas
Find the exa...