Asked by Anonymous
If 1+cos² thetha =5/4. Find thetha
Answers
Answered by
Reiny
1+cos² thetha =5/4
cos^2 Ø = 5/4-1 = 1/4
cosØ = ±1/2
angle in standard position is 30°
but since cosØ is ±, Ø could be in any of the four quadrants
Ø = 30°, 150°, 210°, 330°
or
Ø = π/6, 5π/6, 7π/6, 11π/6
cos^2 Ø = 5/4-1 = 1/4
cosØ = ±1/2
angle in standard position is 30°
but since cosØ is ±, Ø could be in any of the four quadrants
Ø = 30°, 150°, 210°, 330°
or
Ø = π/6, 5π/6, 7π/6, 11π/6
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.