Quick picks on trigonometric functions

Exercise and reference answers

Questions

1. Question

   A minute of angle holds how many seconds:

   Choices

   1. Sixty
   2. Ninety
   3. Hundred

   Correct choice

   Sixty

2. Question

   One radian uses an arc of length:

   Choices

   1. Pi units
   2. One unit
   3. Two units

   Correct choice

   One unit

3. Question

   sin x on the unit circle is the:

   Choices

   1. x-coordinate
   2. Radius
   3. y-coordinate

   Correct choice

   y-coordinate

4. Question

   cos squared plus sin squared equals:

   Choices

   1. One
   2. Zero
   3. Two

   Correct choice

   One

5. Question

   sin and cos repeat after:

   Choices

   1. One pi
   2. Two pi
   3. Half pi

   Correct choice

   Two pi

Instructions

Tap the correct answer before the round moves on.

Explanation