Exercise 4.2.6 solution
| Quadrant |
II |
Quadrant |
I |
| \(x < 0\) |
\(y > 0\) |
\(x > 0\) |
\(y > 0\) |
| \(\sin A > 0\) |
\(\csc A > 0\) |
\(\sin A > 0\) |
\(\csc A > 0\) |
| \(\cos A < 0\) |
\(\sec A < 0\) |
\(\cos A > 0\) |
\(\sec A > 0\) |
| \(\tan A < 0\) |
\(\cot A < 0\) |
\(\tan A > 0\) |
\(\cot A > 0\) |
| Quadrant |
III |
Quadrant |
IV |
| \(x < 0\) |
\(y < 0\) |
\(x > 0\) |
\(y < 0\) |
| \(\sin A < 0\) |
\(\csc A < 0\) |
\(\sin A < 0\) |
\(\csc A < 0\) |
| \(\cos A < 0\) |
\(\sec A < 0\) |
\(\cos A > 0\) |
\(\sec A > 0\) |
| \(\tan A > 0\) |
\(\cot A > 0\) |
\(\tan A < 0\) |
\(\cot A < 0\) |