Question

What is the value of sec square 60°-1

Answer 1

$\red { Value \: of \: sec^{2} \:60\degree - 1 }$

$= tan^{2} \:60\degree$

We know the Trigonometric Identity:

$\boxed { \pink { sec^{2} A - 1 = tan^{2} A }}$

$= ( \sqrt{3} )^{2} \\= 3$

Therefore.,

$\red {Value \: of \: sec^{2} \:60\degree - 1 } \green { = 3 }$

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