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What is the value of sec θ when θ is 45°?(a) √3(b) 1(c) 0(d) √2The question was asked during a job interview.Enquiry is from Trigonometric Ratios of Specific Angles in chapter Trigonometry of Mathematics – Class 10

Answer» RIGHT choice is (d) √2

Explanation: The VALUE of cos 45° is \(\frac {1}{\sqrt 2}\) and secant is inverse to cos.

So, sec θ = \(\frac {1}{cos \, \THETA } = \frac {1}{1/\sqrt 2}\)

= √2


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