Trigonometry Question

Mathematics
Tutor: None Selected Time limit: 1 Day

Consider the arc of length s on the unit circle that begins at the point (1, 0) and ends at the point (−0.4898, −0.7864). Find csc s, sec s, cot s.

Oct 8th, 2015

Thank you for the opportunity to help you with your question!

-(pi-tan^(-1)(y/x))

=-(pi-tan^(-1)(-0.4898/-0.7864))

=-(pi-0.3227pi)

=-0.6777pi

= 121.91 degrees

1 rad= 57.2958 degrees

121.91622 degrees = 2.1278= s (length of the arc)

csc s= 1.1781

sec s= -1.8915

cot s= -0.6228

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 8th, 2015

note that 121.916 degrees is the angle between the points (1,0) and (-0.4898, -0.7864)

Oct 8th, 2015

sec x= 1/cos x

csc x= 1/sin x

cot x= 1/tan x

Oct 8th, 2015

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