11. Inverse Trigonometric Functions and Basic Trig Equations

11. Inverse Trigonometric Functions and Basic Trig Equations / Inverse Sine, Cosine, & Tangent / Problem 3

Problem 3

Determine the exact value of the given inverse trigonometric function without using a calculator.
$y=\sec^{-1}\left(-1\right)+\sec^{-1}\left(2\right)$

$y=\frac{\pi}{3}$

$y=\frac{2\pi}{3}$

$y=\frac{4\pi}{3}$

$y=\frac{3\pi}{4}$

Determine the exact value of the given inverse trigonometric function without using a calculator.y=sec−1(−1)+sec−1(2)y=\sec^{-1}\left(-1\right)+\sec^{-1}\left(2\right)y=sec−1(−1)+sec−1(2)