### Home > A2C > Chapter 13 > Lesson 13.1.1 > Problem13-16

13-16.
1. If , what must be true about the sign of: Homework Help ✎

1. sin(θ)

2. cos(θ)

3. tan(θ)

$\pi\le\theta\le\frac{3\pi}{2}?$

What is the sign of sin x in that quadrant?

Negative.

See part (a).

Negative.

See part (a).

See part (a).