Asked by David
cot (theta)=-9/8, cos (theta)<0
Answers
Answered by
Reiny
Are we solving for theta ??
if so, then
tan Ø = -8/9 and if cos Ø < 0
Ø must be in quadrant II
angle in standard position is 41.63°
( since tan 41.63° = +.888889 or 8/9 )
so Ø = 180 - 41.63 or 138.37°
check:
tan 138.37 = -.888889
cos 138.37 is negative.
Change your calculator to Radians if you want those units
if so, then
tan Ø = -8/9 and if cos Ø < 0
Ø must be in quadrant II
angle in standard position is 41.63°
( since tan 41.63° = +.888889 or 8/9 )
so Ø = 180 - 41.63 or 138.37°
check:
tan 138.37 = -.888889
cos 138.37 is negative.
Change your calculator to Radians if you want those units
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.