Front

In which quadrants is sinθ positive?

Back

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

Front

What is the fifth daughter's name in the riddle: Mary’s father has 5 daughters – Nana, Nene, Nini, Nono?

Back

The fifth daughter's name is Mary.

Front

Convert 150° to radians.

Back

150° is equal to 5π/6 radians.

Front

What are the exact coordinates of 3π/4 on the unit circle?

Back

The coordinates of 3π/4 are (−√2/2, √2/2).

Front

What is sec 3π/2?

Back

sec 3π/2 is undefined.

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 a coordinate plane.

Front

What is the value of cos(0°)?

Back

cos(0°) = 1.

Front

What is the value of sin(90°)?

Back

sin(90°) = 1.

Front

What is the relationship between degrees and radians?

Back

180° is equal to π radians.

Front

What is the value of tan(45°)?

Back

tan(45°) = 1.