Asked by A
Solve (in radians) sec x = 2csc x
When I work it out, it gets to
2cot x - 1 = 0
cot x = 1/2
Would it be ok to use tan^-1 (2) ? I must demonstrate it with a graph as well... would the line go through Q I/III or II/IV ? Thank you!
When I work it out, it gets to
2cot x - 1 = 0
cot x = 1/2
Would it be ok to use tan^-1 (2) ? I must demonstrate it with a graph as well... would the line go through Q I/III or II/IV ? Thank you!
Answers
Answered by
Reiny
sec x = 2csc x
1/cosx = 2/sinx
sinx = 2cosx
sinx/cosx = 2
tanx = 2
yes, I would use tan^-1 (2), but make sure your calculator is set to radians, (DRG key)
Also remember that the tangent is positive in quads I and III
tan^-1 (2) = appr 1.107
x = 1.107 or x = π+1.107= appr 4.249
1/cosx = 2/sinx
sinx = 2cosx
sinx/cosx = 2
tanx = 2
yes, I would use tan^-1 (2), but make sure your calculator is set to radians, (DRG key)
Also remember that the tangent is positive in quads I and III
tan^-1 (2) = appr 1.107
x = 1.107 or x = π+1.107= appr 4.249
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.