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Qus: Which of the following is correct for some θ, such that 0° ≤θ< 90


A. 1/ cos θ < 1
B. sec θ = 0
C. 1/ sec θ < 1
D. 1/ sec θ> 1


Solution
C. 1/ sec θ < 1



Explanation

1/ sec θ = cos θ. And value of cos θ ranges from 0 to 1

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