Asked by Anonymous
Assume we know the following:
cos(22.5 degrees)= sqrt(2+sqrt2)/2
sin(22.5 degrees)=sqrt(2-sqrt2)/2
cos(18 degrees)=sqrt((sqrt5+5)/8)
sin(18 degrees)=(sqrt5-1)/4
What is:
Sin(82.5 degrees)
cos(82.5 degrees)
sin(12 degrees)
cos(12 degrees)
cos(22.5 degrees)= sqrt(2+sqrt2)/2
sin(22.5 degrees)=sqrt(2-sqrt2)/2
cos(18 degrees)=sqrt((sqrt5+5)/8)
sin(18 degrees)=(sqrt5-1)/4
What is:
Sin(82.5 degrees)
cos(82.5 degrees)
sin(12 degrees)
cos(12 degrees)
Answers
Answered by
Steve
using the same addition formulas as before, note that
82.5 = 60 + 22.5
12 = 30-18
82.5 = 60 + 22.5
12 = 30-18
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.