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MathematicsPrecalculusTrig Functions → Evaluating Trig Functions

Instructions for problem set  Evaluate the following trigonometric expressions

Questions


\(tan(30^\text{o}) \) = ________

\(tan(180^\text{o}) \) = ________

\(tan(3 \pi / 2) \) = ________

\(cos(\pi / 6) \) = ________

\(tan(270^\text{o}) \) = ________

\(cos(5 \pi / 6) \) = ________

\(cos(\pi / 4) \) = ________

\(cos(30^\text{o}) \) = ________

\(sin(45^\text{o}) \) = ________

\(cos(60^\text{o}) \) = ________

\(cos(270^\text{o}) \) = ________

\(sin(5 \pi / 6) \) = ________

\(cos(150^\text{o}) \) = ________

\(cos(2 \pi / 3) \) = ________

\(sin(60^\text{o}) \) = ________

\(cos(180^\text{o}) \) = ________

\(tan(\pi / 6) \) = ________

\(tan(\pi / 3) \) = ________

\(tan(5 \pi / 6) \) = ________

\(tan(60^\text{o}) \) = ________

\(sin(0) \) = ________

\(sin(30^\text{o}) \) = ________

\(cos(45^\text{o}) \) = ________

\(cos(0^\text{o}) \) = ________

\(tan(\pi) \) = ________

\(sin(\pi / 6) \) = ________

\(sin(180^\text{o}) \) = ________

\(tan(150^\text{o}) \) = ________

Answers


\(tan(30^\text{o}) = 1/\sqrt{3}\)

\(tan(180^\text{o}) = 0\)

\(tan(3 \pi / 2) = undefined\)

\(cos(\pi / 6) = \sqrt{3} / 2\)

\(tan(270^\text{o}) = undefined\)

\(cos(5 \pi / 6) = -\sqrt{3} / 2\)

\(cos(\pi / 4) = \sqrt{2} / 2\)

\(cos(30^\text{o}) = \sqrt{3} / 2\)

\(sin(45^\text{o}) = \sqrt{2} / 2\)

\(cos(60^\text{o}) = 1/2\)

\(cos(270^\text{o}) = 0\)

\(sin(5 \pi / 6) = 1/2\)

\(cos(150^\text{o}) = -\sqrt{3} / 2\)

\(cos(2 \pi / 3) = -1/2\)

\(sin(60^\text{o}) = \sqrt{3} / 2\)

\(cos(180^\text{o}) = -1\)

\(tan(\pi / 6) = 1/\sqrt{3}\)

\(tan(\pi / 3) = \sqrt{3}\)

\(tan(5 \pi / 6) = -1/\sqrt{3}\)

\(tan(60^\text{o}) = \sqrt{3}\)

\(sin(0) = 0\)

\(sin(30^\text{o}) = 1/2\)

\(cos(45^\text{o}) = \sqrt{2} / 2\)

\(cos(0^\text{o}) = 1\)

\(tan(\pi) = 0\)

\(sin(\pi / 6) = 1/2\)

\(sin(180^\text{o}) = 0\)

\(tan(150^\text{o}) = -1/\sqrt{3}\)
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