Trigonometry Chapter 4 Name___________________
Worksheet 4.1
Using the double angle identities find each of the following given
4
sinx 5
=
, x is in quadrant one.
1. sin 2x 2. cos 2x
3. tan 2x
Using the double angle identities find each of the following given
13
secx 5
= −
, x is not in quadrant three.
4. sin 2x 5. cos 2x
6. tan 2x
Using the double angle identities find each of the following given
2
sinx 5
=
, x is not in quadrant one.
7. sin 2x 8. cos 2x
9. tan 2x
