Verified Answer :

juanitacnunez

I know the equation is 1/cos
but is it negative sqrt(3)/2 or positive?
or is it negative 1/2 or positive?
This makes the reference angle π/6 or 30º which gives cos 30º=√3/2 or a sec value of 2/√3=2√3/3
sec(-5pi/6)=-2√3/3

Answer:

sec(5pi/ 3) = 2 and sin(7pi/6) = -1/2

Step-by-step explanation:

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