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what is the variations in trignonmetery like all,silver,tea,cups and where will be this concept used

what is the variations in trignonmetery like all,silver,tea,cups and where will be this concept used 

Grade:10

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
Vikas TU
14149 Points
4 years ago
Dear student 
This is used to find which trigonometric function is +ve or -ve in which quaderant .
In 1 st quadrant = All positive
In 2nd = Sin , Cosec Positive 
In 3rd = Tan , Cot Positive 
In 4th = Cos, sec Positive 

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