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I have some confusion regarding this problem. please help

I have some confusion regarding this problem.     
please help    
 

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Grade:12th pass

2 Answers

Arun
25750 Points
4 years ago
Dear student
 
what is the doubt hereas it is T-1 (T) type question.
make graph of every function.
 
Hope it helps
Aditya Gupta
2081 Points
4 years ago
lets consider tan-1(tan24pi/13)
write it as tan-1(tan(2pi – 2pi/13))= tan-1(tan( – 2pi/13))= – 2pi/13
similarly for others.
kindly approve  :))

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