Secant(3pi/4) = 1/cos(3pi/4) = 1/[-1/sqrt(2)] = -sqrt(2)
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x = 3pi/4
3pi to the nearest whole number
a secant is a line containing a chord. A secant is a line that intersects the circle twice(or passes through a circle)
The function sec(x) is the secant function. It is related to the other functions by the expression 1/cos(x). It is not the inverse cosine or arccosine, it is one over the cosine function. Ex. cos(pi/4)= sqrt(2)/2 therefore secant is sec(pi/4)= 1/sqrt(2)/2 or 2/sqrt(2).
sec(x)=1/cos(x), by definition of secant.