What is the arc length of an angle of 7π 6 radians formed on the unit circle? A) π 6 B) 5π 6 C) 7π 6 D) 5π 6

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asked Jan 18, 2019 158k views

2 Answers

TCHdvlp · Answer 1 · 2019-01-22T23:10:09+0000

x=cost
y=sint
so x^2+y^2=1
could be represented parametrically
and you would take
Integral
sqrt (1-(dx/dt)^2+(dy/dt)^2) from 0 to 7pi/6
Note, I'm note sure if this is the correct integration formula

What is the arc length of an angle of 7π 6 radians formed on the unit circle? A) π 6 B) 5π 6 C) 7π 6 D) 5π 6

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