What is the exact value of $sec 60$ ?

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Answer 1 · 2018-06-27T15:57:52

$2$

$sec60^@=1/cos60^@$

$:.1/0.5=2$

Answer 2 · 2018-06-27T16:01:11

$color(indigo)(sec(60) = 2$

$sec theta = 1 / cos theta$ , identity.

$:. sec (60) = 1 / cos (60)$

We know, $cos (60) = 1/2$

Hence, $1/cos (60) = 1 / (1/2) = 2$

What is the exact value of sec 60sec 60?