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Math Drills
Trigonometric ratios & functions
Values of trigonometric functions
Practice 1
Trigonometric ratios & functions
Values of trigonometric functions
1 / 5
Standard
Calculate.
sin
(
5
π
6
)
+
cos
(
5
π
6
)
\sin\left(\frac{5\pi }{6}\right) + \cos\left(\frac{5\pi }{6}\right)
sin
(
6
5
π
)
+
cos
(
6
5
π
)
1
1
+
3
2
\frac{1 + \sqrt{3}}{2}
2
1
+
3
2
1
−
3
2
\frac{1 - \sqrt{3}}{2}
2
1
−
3
3
−
1
+
3
2
\frac{-1 + \sqrt{3}}{2}
2
−
1
+
3
4
−
1
−
3
2
\frac{-1 - \sqrt{3}}{2}
2
−
1
−
3
Answer
