Question

What is the positive angle less than 2pi radians that is co terminal with a -7/11 pi angle
What is
2π - (7/11)π ? ----- aside: what is 2 - 7/11 ?

Explanation:
-7π/11 is in the fourth quadrant and I can get there by going 7π/11 in a clockwise rotation
I can go counterclockwise (the positive rotation in trig) x radians.
of course x + 7π/11 = 2π
x = 2π - 7π/11

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