What is the maximum value of $\frac{1}{sec θ}$ ?

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-1

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Solution

The correct option is B 1
$s e c θ = \frac{1}{c o s θ}$
Hence
$\frac{1}{s e c θ} = c o s θ$
Now
$c o s θ ϵ [- 1, 1]$
Hence
Maximum value of $\frac{1}{s e c θ}$
$= 1$

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