Question

sec -300 degree value​

Answer 1

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$sec( - {300}^{ \circ} )$

$= \sec( {300}^{ \circ} )$

$= sec \: (4 \times {90}^{ \circ} - {60}^{ \circ} )$

$= sec \: {60}^{ \circ}$

$= 2$

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Answer 2

Answer:

Step-by-step explanation:

=$\frac{1}{cos(-300)}$ =$\frac{1}{cos(180^{0}+120^{0} ) }$      

=$\frac{1}{cos120^{0} }$   =$\frac{1}{cos(90^{0}+30^{0} ) }$      

               =$\frac{1}{-cos30^{0} }$=-$\frac{2}{\sqrt{3} }$                                         (since cos(-Θ)=cosΘ)