Find the principal value of:
cos-1 (tan 3pi/4)
Answers
Answered by
4
Answer:
Find tan(3π4)
Ans: -1
Explanation:
You may find tan ((3pi)/4) by 2 ways.
1. By the Trig Table (of Special Arcs)
Trig Table gives -->tan(3π4)=−1
2. By the trig unit circle.
tan(3π4)=−tan(π)4
On the trig unit circle, the segment AT=tan(π4)
The triangle OAT is isosceles, tan(π4)=AT=OA=1 . Therefor
tan(3π4)=−tan(π4)=−1.
PLEASE MARK AS BRAINLIEST
Find tan(3π4)
Ans: -1
Explanation:
You may find tan ((3pi)/4) by 2 ways.
1. By the Trig Table (of Special Arcs)
Trig Table gives -->tan(3π4)=−1
2. By the trig unit circle.
tan(3π4)=−tan(π)4
On the trig unit circle, the segment AT=tan(π4)
The triangle OAT is isosceles, tan(π4)=AT=OA=1 . Therefor
tan(3π4)=−tan(π4)=−1.
PLEASE MARK AS BRAINLIEST
Similar questions