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Math Drills
Trigonometric ratios & functions
Angle addition formulas
Practice 1
Trigonometric ratios & functions
Angle addition formulas
1 / 5
Standard
Calculate.
cos
π
12
\cos \frac{\pi }{12}
cos
12
π
1
6
−
2
4
\frac{\sqrt{6} - \sqrt{2}}{4}
4
6
−
2
2
6
+
2
4
\frac{\sqrt{6} + \sqrt{2}}{4}
4
6
+
2
3
2
−
6
4
\frac{\sqrt{2} - \sqrt{6}}{4}
4
2
−
6
4
−
6
−
2
4
\frac{-\sqrt{6} - \sqrt{2}}{4}
4
−
6
−
2
Answer
