If and , then
24.8.1 | ||||
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24.8.2 | ||||
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The second expansion holds also for and .
If with , or with , then
24.8.3 | |||
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If and , then
24.8.4 | ||||
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24.8.5 | ||||
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24.8.6 | ||||
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24.8.7 | ||||
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Let . Then
24.8.8 | |||
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24.8.9 | |||
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