In third normalization form example, Subject Id alone can determine the subject_type, then partial dependency exists. But in course , it is written that The column Exam_Type depends on both Std_Id and Subject-Id . If I am wrong could u please justify what is written in the course.
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Course: https://www.educative.io/collection/10370001/5119687241236480
Lesson: https://www.educative.io/collection/page/10370001/5119687241236480/5842119891615744