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Sagot :
Answer:
- (2, -60) = (-2, 120°) = (2, 300°) = (-2, -240°)
- (-2, 240°) = (-2, -120°) = (2, 60°) = (2, -300°)
Step-by-step explanation:
Equivalent polar coordinates will have the same modulus and some multiple of 360° added to the argument, or the opposite modulus and some odd multiple of 180° added to the argument.
a∠b° = a∠(b+360n)° = -a∠(b +180 +360n)°
(2, -60°)
Equivalents will be ...
(2, (-60 +360n)°) = (2, 300°)
(-2, (-60 +180 +360n)°) = (-2, -240°) = (-2, 120°)
(-2, 240°)
Equivalents will be ...
(-2, (240 +360n)°) = (-2, -120°)
(2, (240 +180 +360n)°) = (2, -300°) = (2, 60°)
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