ibis121
ibis121
06-12-2014
Mathematics
Answered
how to find cos(-19pi/6)
Answer :
jamiealt123
jamiealt123
06-12-2014
Use the unit circle.
-19pi/6 is the same as 3pi + pi/6
This means that it goes around the unit circle 3pi times and ends up at 7pi/6
So -19pi/6 is equivalent to 7pi/6.
Looking at the unit circle, cos(7pi/6) = -√3/2
Answer Link
VIEW ALL ANSWERS ( 25+ )
Other Questions
How do I round to the nearest thousand if it is 32879
Which sentence correctly forms the plural of 1700 A Was Mozart born in the 1700s B Was Mozart born in the 1700s C Was Mozart born in the 1700s
what is the only product found in both the northern and southern regions
Each figure is a regular polygon find the value of x
grass obtains 10of the energy from sun when the mouse eats the grass it only get percent of the suns energy while is lost to heat
Which of the following sentences is written correctly A The helpless baby crying over not having anything to eat right away B When the baby cries loudly before
Zionism was a push for a Jewish
MexicanAmericans and AfricanAmericans joined the war effort due to the threat of A segregation B fascism C mobilization D internment
how are static electricity and current electricity alike and different
Why did the Continental Congress choose George Washington to lead the Continental Army A He had taught military science at Harvard and knew the British officers