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Evaluate Trig Functions QI
Evaluate Trig Functions QII-QIV
Evaluate Inverse Trig Functions
100
\[\sin \left( {{{30}^ \circ }} \right)\]
1/2
100
\[\tan \left( {{{135}^ \circ }} \right)\]
-1
100
\[{\tan ^{ - 1}}\left( 1 \right)\] Give 2 angles between 0 and 360 degrees.
\[{45^ \circ }\] and \[{225^ \circ }\]
200
\[\cos \left( {{{45}^ \circ }} \right)\]
\[\frac{{\sqrt 2 }}{2}\]
200
\[\sin \left( {{{240}^ \circ }} \right)\]
\[ - \frac{{\sqrt 3 }}{2}\]
200
\[{\sin ^{ - 1}}\left( {\frac{{\sqrt 3 }}{2}} \right)\] Give 2 angles between 0 and 360 degrees.
\[{60^ \circ }\] and \[{120^ \circ }\]
300
\[\tan \left( {{\textstyle{\pi \over 4}}} \right)\]
1
300
\[\cos \frac{{5\pi }}{3}\]
1/2
300
\[{\cot ^{ - 1}}\left( {\sqrt 3 } \right)\] Give QI angle in radians.
\[\frac{\pi }{6}\]
400
\[\csc \left( {{\textstyle{\pi \over 3}}} \right)\]
\[\frac{{2\sqrt 3 }}{3}\]
400
\[\sec ( - {225^ \circ })\]
\[ - \sqrt 2 \]
400
\[{\cos ^{ - 1}}\left( {\frac{1}{2}} \right)\] Give two angles between 0 and \[{2\pi }\] radians.
\[\frac{\pi }{3}\] and \[\frac{{5\pi }}{3}\]
500
\[\cot \left( {{\textstyle{\pi \over 6}}} \right)\]
\[{\sqrt 3 }\]
500
\[\cot \left( {\frac{{7\pi }}{4}} \right)\]
-1
500
\[\tan \left[ {{{\cos }^{ - 1}}\left( {\frac{3}{5}} \right)} \right]\] Hint: Right Triangle
4/3