More Unit Circle Practice

Front

In which quadrants is sinθ positive?

Back

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

Front

What is 360 degrees in radians?

Back

360 degrees is equivalent to 2π radians.

Front

Evaluate: csc(3π/4)

Back

csc(3π/4) = √2.

Front

What is the reciprocal of the sine function?

Back

The reciprocal of the sine function is cosecant.

Front

What are the coordinates at 225 degrees on the unit circle?

Back

The coordinates at 225 degrees are \left(-\frac{\sqrt{2}}{2}, -\frac{\sqrt{2}}{2}\right).

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 of the coordinate plane.

Front

What is the cosine of 0 degrees?

Back

cos(0) = 1.

Front

What is the sine of 90 degrees?

Back

sin(90) = 1.

Front

What is the tangent of 45 degrees?

Back

tan(45) = 1.

Front

What is the relationship between sine and cosine?

Back

sin(θ) = cos(90° - θ).