- #1
Darth Frodo
- 212
- 1
Not homework as such, just need some clarification.
When finding [itex]\alpha[/itex] do you have to take the signs into account when finding tan[itex]^{-1}[/itex] x/a. Does it matter if a or x are negative?
Next question is about quadrants
1: [itex]\theta[/itex] = [itex]\alpha[/itex]
2: [itex]\theta[/itex] = [itex]\pi[/itex] - [itex]\alpha[/itex]
3: [itex]\theta[/itex] = -[itex]\pi[/itex] - [itex]\alpha[/itex]
4: [itex]\theta[/itex] = -[itex]\alpha[/itex]
Based on these (if correct) it seems that I should disregard the sign when finding [itex]\alpha[/itex].
Is this correct?
When finding [itex]\alpha[/itex] do you have to take the signs into account when finding tan[itex]^{-1}[/itex] x/a. Does it matter if a or x are negative?
Next question is about quadrants
1: [itex]\theta[/itex] = [itex]\alpha[/itex]
2: [itex]\theta[/itex] = [itex]\pi[/itex] - [itex]\alpha[/itex]
3: [itex]\theta[/itex] = -[itex]\pi[/itex] - [itex]\alpha[/itex]
4: [itex]\theta[/itex] = -[itex]\alpha[/itex]
Based on these (if correct) it seems that I should disregard the sign when finding [itex]\alpha[/itex].
Is this correct?