SOLUTION: Please help me on the following question:
Find the exact value of sin(-10π/3)
Algebra.Com
Question 190623: Please help me on the following question:
Find the exact value of sin(-10π/3)
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Here's the unit circle for reference:
Start with the given expression.
Use the identity
Take note that
Break up to get
Use the identity to expand
Take the sine of to get 0. Take the cosine of to get 1 (use the unit circle).
Multiply
Simplify
Take note that
Break up to get
Use the identity to expand
Take the sine of to get 0. Take the cosine of to get -1 (use the unit circle).
Multiply
Simplify
Evaluate the sine of to get (use the unit circle).
So
RELATED QUESTIONS
I need your help on the following problem:
Find the exact value of sin (-π/3)... (answered by jim_thompson5910)
Find the exact value of each expression
a) sin 7π/4
b) sin π/3
c) sin... (answered by stanbon)
Please help me solve
Find the exact value of
a. sin 300°
b. tan(405°)(Hint:405°... (answered by jim_thompson5910)
Find the exact value of each expression
a) sinπ/4
b) sin3π/4
c) sin5π/4
(answered by lwsshak3)
Please help me find the exact value of... (answered by Alan3354)
Find the exact value of each expression
a) sin 8π/3
b) cos 8π/3
c) sin... (answered by lwsshak3)
Find the exact value of each expression
a) sin7π/6
b) sinπ/6
c)... (answered by Alan3354)
Could someone help me with this problem please:
Use trigonometric identities to find... (answered by Alan3354)
Find the exact value of sin(-π/6).
Thank... (answered by josmiceli)