Class 8 Math e-Book's MCQs - Complete
Cosine Rule Quiz App Free Download & e-Book - 13
Apps:
MCQ: 13
For the Cosine Rule of any triangle ABC, the b² is equal to
- a² - c² + 2ab cos A
- a³ + c³ - 3ab cos A
- a² + c² - 2ac cos B
- a² - c² 4bc cos A
c
Class 8 Math App & e-Book Tests PDF Download
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