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What is the smallest value of sec²θ - 2tan²θ? What is the smallest value of sec²θ - 2tan²θ?

What is the smallest value of sec²θ - 2tan²θ?
What is the smallest value of sec²θ - 2tan²θ? 
 

Grade:10

2 Answers

Vikas TU
14149 Points
4 years ago
Dear student 
Sec^2Q – tan^2Q =1 
So,the equaton becomes  
1 – tan^2Q 
So minimum value of this equation is 1. 
Hope this helps 
Good Luck 
Arun
25750 Points
4 years ago
 
Sec^2Q – tan^2Q =1 
So,the equaton becomes  
1 – tan^2Q
 
hence minimum goes to – infinity
while maximum is 1

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