Website: [ Ссылка ]
Note: At 50:20, we should exclude q=0 since that was the domain given in the question. Hence our set of values should be [-1,0)U(0,1].
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Website: [ Ссылка ]
Note: At 50:20, we should exclude q=0 since that was the domain given in the question. Hence our set of values should be [-1,0)U(0,1].