Introduction to Trigonometric Identities & Equations - SS3 Mathematics Lesson Note
Recall that,
|
\[\mathbf{\theta}\] |
\[\mathbf{0{^\circ}}\] |
\[\mathbf{30{^\circ}}\] |
\[\mathbf{45{^\circ}}\] |
\[\mathbf{60{^\circ}}\] |
\[\mathbf{90{^\circ}}\]
|
|---|---|---|---|---|---|
|
\[\mathbf{\sin}\mathbf{\theta}\] |
\[0\] |
\[\frac{1}{2}\] |
\[\frac{\sqrt{2}}{2}\] |
\[\frac{\sqrt{3}}{2}\] |
\[1\] |
|
\[\mathbf{\cos}\mathbf{\theta}\] |
\[1\] |
\[\frac{\sqrt{3}}{2}\] |
\[\frac{\sqrt{2}}{2}\] |
\[\frac{1}{2}\] |
\[0\] |
|
\[\mathbf{\tan}\mathbf{\theta}\] |
\[0\] |
\[\frac{\sqrt{3}}{2}\] |
\[1\] |
\[\sqrt{3}\] |
\[\infty\] |