Question

Imagine looking for a certain angle whose cosine is positive and whose sine is negative.

Part 1: Name the two quadrants in which cosine is positive.

Part 2: Name the quadrants in which sine is negative.

Part 3: Use the information in parts a and b to identify the quadrant in which cosine is positive and sine is negative.

Part 4: Write down one angle, in degrees, that has a negative sine and a positive cosine.

Part 5: Using your calculator, confirm your choice by writing the cosine of your angle and the sine of your angle below.