please explain the options Which of the following regions is/are simply connected on R2? P =...

please explain the options

Which of the following regions is/are simply connected on R2?

P = {(x, y) | x2 + y2 < 1}
Q = {(x, y) | 0 < x2 + y2 < 1}
R = {(x, y) | 1 < x2 + y2 < 9 and y > 0}

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milcah answered 1 year ago

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