Trigonometry
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)
y=π3y=\frac{\pi}{3}y=3π
y=2π3y=\frac{2\pi}{3}y=32π
y=4π3y=\frac{4\pi}{3}y=34π
y=3π4y=\frac{3\pi}{4}y=43π