Find the measure of a negative angle coterminal with 5/3 radians

Talkol asked Oct 8, 2023

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Talkol asked Oct 8, 2023

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24 votes

$-(7)/(6)\pi$

1) Note that the angle of 5/3π is equivalent to 300º and it is located in Quadrant IV.

2) So, we can write the following:

$(5)/(6)\pi-2\pi=-(7)/(6)\pi$

When we subtract from that 2pi we get this negative coterminal angle.

Jacek Glen answered Oct 14, 2023

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