Grade 11Trigonometry
Value of cos squared theta + secant squared theta is always
Value of cos squared theta + secant squared theta is always
1 Answer
Arun
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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