Unit Circle Practice

What is the value of sin(\frac{\pi}{2})?

• 0

• 0.5

• 1

• 1.5

What is the value of sin(90^{o})?

• 0

• 0.5

• 1

• 1.5

What is the value of cos(\frac{\pi}{4})?

• \frac{\sqrt{2}}{2}

• 0

• 1

• \frac{1}{\sqrt{2}}

What is the value of sin(\frac{3\pi}{2})?

• 0

• -1

• 1

• \frac{\sqrt{2}}{2}

What is the value of cos(\frac{5\pi}{4})?

• \frac{\sqrt{2}}{2}

• 0

• -\frac{\sqrt{2}}{2}

• -1

In which quadrants is cosine positive?

• the 1st and 2nd quadrants

• the 2nd and 3rd quadrants

• the 1st and 4th quadrants

• the 3rd and 4th quadrants

What is the value of sin(\frac{\pi}{6})?

• 0

• \frac{1}{4}

• \frac{1}{2}

• \frac{3}{4}

What is the value of cos(\frac{3\pi}{2})?

• 0

• 1

• -1

• \frac{1}{2}

What is the value of sin(\frac{\pi}{4})?

• \frac{\sqrt{2}}{2}

• \frac{1}{\sqrt{2}}

• \frac{\sqrt{3}}{2}

• 1

What is the value of cos(\frac{\pi}{3})?

• \frac{1}{2}

• \frac{1}{3}

• \frac{2}{3}

• 0