How do you determine $sec θ$ $sectheta$ given $cos θ = \frac{2}{3}, 0^{\circ} < θ < 90^{\circ}$ $costheta=2/3,0^circ<theta<90^circ$ ?

Question

2759 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-02-15T14:36:40

$\frac{3}{2}$ $3/2$

$sec θ = \frac{1}{cos θ} = \frac{1}{\frac{2}{3}} = \frac{3}{2}$ $sectheta = 1/(costheta) = 1/(2/3) = 3/2$

How do you determine secθsectheta given cosθ=23,0∘<θ<90∘costheta=2/3,0^circ<theta<90^circ?