SOLUTION: Find exact value of tan(-15°)
Algebra.Com
Question 601011: Find exact value of tan(-15°)
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Represent 
as 
Recall that 
radians, \ =\ -\sin(\varphi))
, \ =\ \cos(\varphi))
, \ =\ \frac{1}{2})
, \ =\ \frac{\sqrt{3}}{2})
.
Now use
\ =\ \frac{\sin(\varphi)}{1\ +\ \cos(\varphi)})
to calculate the desired function value.
John
My calculator said it, I believe it, that settles it
RELATED QUESTIONS
Find the exact value of tan 15... (answered by stanbon,Theo)
Find the exact value of each trig expression
Tan 135 - tan 15
----------------------
1 (answered by stanbon)
tan -15 degree exact value... (answered by ikleyn)
Find the exact value of tan(105°)
(answered by Edwin McCravy)
find the exact value of tan... (answered by Fombitz)
Find the exact value of tan 345 (answered by lwsshak3)
Find exact value of tan(arcsec 17÷15 - cot... (answered by lwsshak3)
Find the exact value of each of the following. Enter an exact answer; decimal... (answered by Fombitz,Theo)
find the exact value of tan 30... (answered by stanbon,rapaljer)
