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Grade: 11
        
How to find the domain of sec2x-tan2x...... .............
9 months ago

Answers : (2)

Saurabh Koranglekar
askIITians Faculty
2400 Points
							Dear student

it is a standard identity and its domain is the entire range on the real axis

Regards
9 months ago
Aditya Gupta
1244 Points
							
domain means the points where the function is defined. so obviously the given function is defined for all x belonging to R except for the points where cosx=0 or x=(2n+1)*pi/2. so domain is R – U(2n+1)*pi/2, n belongs to integer, and U means the union.
9 months ago
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