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Value of cos squared theta + secant squared theta is always

Value of cos squared theta + secant squared theta is always

Grade:11

1 Answers

Arun
25750 Points
4 years ago
Dear student
 
As we know x + 1/x belongs to [2, infinity) ; if x > 0
 
hence cos^2 theta + sec^2 theta = cos^2 theta + 1 / cos^2 theta = [2, infinity)
 

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