Exact Trig Values

Front

sinθ is positive in which quadrants?

Back

The 1st and 2nd quadrants.

Front

True or False? tan 45 = tan 225

Back

True.

Front

True or False? cos 90 = sin 360

Back

True.

Front

Which function corresponds to the y coordinate on the unit circle?

Back

Sine.

Front

cosθ is positive in which quadrants?

Back

The 1st and 4th quadrants.

Front

What is the value of sin 0?

Back

0.

Front

What is the value of cos 0?

Back

1.

Front

What is the value of tan 45?

Back

1.

Front

In which quadrants is tanθ positive?

Back

The 1st and 3rd quadrants.

Front

What is the relationship between sin and cos for complementary angles?

Back

sin(90° - θ) = cosθ.