SOLUTION: what is the refrence angle of -13pi/4

Algebra.Com
Question 751741: what is the refrence angle of -13pi/4
Answer by tommyt3rd(5050)   (Show Source): You can put this solution on YOUR website!


is a multiple is
so its reference angle is



:)

RELATED QUESTIONS

what is the exact value of cos... (answered by solver91311)
What is the reference angle of 13pi/8? How do I get the correct answer? Please help me,... (answered by stanbon)
I need help using the unit circle. The Question is find the exact value of... (answered by ewatrrr)
how do i find the reference angle for 13pi/12 is it 195?? (answered by richard1234)
What is the exact value of tan(13pi/12)? How do I figure that out? Thank you for your... (answered by josmiceli,khwang)
Using a half angle identity, find the value of... (answered by lwsshak3)
find the exact value of each function. 1. Cos 7pi/4 2. Sin (-30') Find the reference... (answered by stanbon)
What is the exact circular function value for csc... (answered by lwsshak3)
Find an angle between 0degrees and 360dgrees that is coterminal with -300degrees. Find (answered by Alan3354)