Trig Review

Front

Which of these points is NOT on the unit circle? (1,0), (0,1), (-1,0), (0,0)

Back

(0,0) is not on the unit circle because the unit circle consists of points that are at a distance of 1 from the origin.

Front

In which quadrants is sinθ positive?

Back

sinθ is positive in the 1st and 2nd quadrants.

Front

What is cos(5π/3)?

Back

cos(5π/3) = 1/2.

Front

Convert 150° to radians.

Back

150° = 5π/6 radians.

Front

Determine an equation for the graph of y=tan(x).

Back

The equation for the graph is y=tan(x).

Front

What is the definition of the unit circle?

Back

The unit circle is a circle with a radius of 1 centered at the origin (0,0) in the coordinate plane.

Front

What are the coordinates of the point on the unit circle at 90°?

Back

The coordinates are (0,1).

Front

What is the sine of 30°?

Back

sin(30°) = 1/2.

Front

What is the cosine of 60°?

Back

cos(60°) = 1/2.

Front

What is the tangent of 45°?

Back

tan(45°) = 1.