Step-by-step explanation:
[ Refer to the attached file ]
- Used method Trigonometric Ratio !!
- In IV quadrant sinx , cscx , tanx , cotx are negative !!
- But cosx and secx are positive !!
- In IV quadrant theta ( i.e, x ) varies from 3π/2 to 2π ( i.e, 270° to 360° )