2Secant of 2π/3
Find the exact value of sec(2π/3).
Secant of 2π/3 is −2. Since secant is 1/cosine, and cos(2π/3) = −1/2 (reference angle π/3, negative in quadrant II), flipping gives sec(2π/3) = 1/(−1/2) = −2.
Find the exact value of sec(2π/3).
Secant of 2π/3 is −2. Since secant is 1/cosine, and cos(2π/3) = −1/2 (reference angle π/3, negative in quadrant II), flipping gives sec(2π/3) = 1/(−1/2) = −2.