Mathematics, 16.02.2021 20:00, aliyahedwards94

Use a half-angle identity to find the exact value of cos 15 degrees. a. √2+√3 /2
b. √2-√3 /2
c. √2+ √3
d. √2 - √3

Use a half-angle identity to find the exact value of cos 15 degrees.

a. √2+√3 /2
b. √2-√3 /2
c. √

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Use a half-angle identity to find the exact value of cos 15 degrees. a. √2+√3 /2
b. √2-√3 /2<...