Exercise 3.4
Find the principal and general solutions of the following equations:
1. 
Ans. Given:
Here
lies in first or third quadrant.

or 

or 

or 
Therefore, the principal solutions are 
Now, 
where
Z
2. 
Ans. Given:
Here
lies in first or fourth quadrant.

or 

or 

or 
Therefore, the principal solutions are 
Now, 
where
Z
3. 
Ans. Given: 

Here
lies in second or fourth quadrant.

or 

or 

or 
Therefore, the principal solutions are 
Now, 
where
Z
4. 
Ans. Given:
Here
lies in third or fourth quadrant.

or 

or 

or 
Therefore, the principal solutions are 
Now, 
where
Z
5. 
Ans. Given: 

Z

or
Z

or
Z

or
Z
Therefore, the principal solutions are
Z
6. 
Ans. Given: 







or 

or
Z

or
Z
7. 
Ans. Given: 



or 

or
Z

or
Z

or
Z
8. 
Ans. Given: 


or 
or 
or
Z
9. 
Ans. Given: 






or 

or
Z

or
Z

or
Z
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