CW-Quadrantal Angles

Front

What are quadrantal angles?

Back

Quadrantal angles are angles that are multiples of 90 degrees (or \(\frac{\pi}{2}\) radians) and lie on the axes of the coordinate plane. They include 0°, 90°, 180°, 270°, and 360°.

Front

What is the value of \(\sin 0°\)?

Back

The value of \(\sin 0°\) is 0.

Front

What is the value of \(\cos 90°\)?

Back

The value of \(\cos 90°\) is 0.

Front

What is the value of \(\tan 0°\)?

Back

The value of \(\tan 0°\) is 0.

Front

What is the value of \(\sin 180°\)?

Back

The value of \(\sin 180°\) is 0.

Front

What is the value of \(\cos 0°\)?

Back

The value of \(\cos 0°\) is 1.

Front

What is the value of \(\tan 90°\)?

Back

The value of \(\tan 90°\) is undefined.

Front

What is the value of \(\sin 270°\)?

Back

The value of \(\sin 270°\) is -1.

Front

What is the value of \(\cos 270°\)?

Back

The value of \(\cos 270°\) is 0.

Front

What is the value of \(\tan 180°\)?

Back

The value of \(\tan 180°\) is 0.