SOLUTION: Find the exact value of each expression
a) sin 8π/3
b) cos 8π/3
c) sin 11π/4
d) cos 11π/4
Can you please help ? Thanks so much in advance:)
Algebra ->
Trigonometry-basics
-> SOLUTION: Find the exact value of each expression
a) sin 8π/3
b) cos 8π/3
c) sin 11π/4
d) cos 11π/4
Can you please help ? Thanks so much in advance:)
Log On
Question 857587: Find the exact value of each expression
a) sin 8π/3
b) cos 8π/3
c) sin 11π/4
d) cos 11π/4
Can you please help ? Thanks so much in advance:) Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! Find the exact value of each expression
a) sin 8π/3=-1 (reference angle=2π/3)
b) cos 8π/3=0 (reference angle=2π/3)
c) sin 11π/4=√2/2 (reference angle=3π/4) in quadrant II
d) cos 11π/4=-√2/2 (reference angle=3π/4) in quadrant II
(