一道高数题,如图第4题,求跳跃间断点。 5
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(4) 间断点 x =1 x = 0x = 2k k 非零整数
lim xarctan[1/(x-1)]/sin(πx/2) = -π/2
lim xarctan[1/(x-1)]/sin(πx/2) = π/2
x = 1 跳跃间断点
lim xarctan[1/(x-1)]/sin(πx/2)
= lim xarctan[1/(x-1)]/(πx/2) = -1/2
x = 0 间断点
lim xarctan[1/(x-1)]/sin(πx/2) = ∞
x = 2k (k 非零整数) 穷间断点
lim xarctan[1/(x-1)]/sin(πx/2) = -π/2
lim xarctan[1/(x-1)]/sin(πx/2) = π/2
x = 1 跳跃间断点
lim xarctan[1/(x-1)]/sin(πx/2)
= lim xarctan[1/(x-1)]/(πx/2) = -1/2
x = 0 间断点
lim xarctan[1/(x-1)]/sin(πx/2) = ∞
x = 2k (k 非零整数) 穷间断点
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