QUESTION
Asked by sonaisha | 24th Nov, 2008, 08:59: PM
Expert Answer:
NUMERATOR = cos A cosecA -sinA secA
=cosA/ sin A - sinA / cos A
=(cos2A- sin2A ) / (cos A sinA ) = (cosA+sinA)(cosA-sinA) / (cos A sinA )
NUM / DEN = (cos A - sinA ) / (cos A sinA ) = cosecA - secA
Answered by | 28th Nov, 2008, 02:30: PM
Related Videos
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change