 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from Natalie, a student: hi, i need help proving the following trig identity. i cant seem to figure out how to do it. |
Hi Natalie,
If you multiply both sides by 1 - sin2x and then multiply both sides by cos2x you get
(1 + sin2x)(1 - sin2x) = cos22x.
Does that help?
Penny
| ||
| ||
| ||
 |
 |
|
Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.