Asked by George
Prove or disprove the following identity.
cos(-x) - sin(-x) = cos(x) + sin(x)
cos(-x) - sin(-x) = cos(x) + sin(x)
Answers
Answered by
Reiny
LS = cos(-x) - sin(-x)
= cosx + sinx
= RS
These are based on standard trig relationships that you should know and recognize
= cosx + sinx
= RS
These are based on standard trig relationships that you should know and recognize
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.