Chapter 7: Trigonometry & Trigonometry Formulas - Math Mcqs for Grade 8

Q.  For the Cosine Rule of any triangle ABC, the b² is equal to

a. a² - c² + 2ab cos A
b. a³ + c³ - 3ab cos A
c. a² + c² - 2ac cos B
d. a² - c² 4bc cos A


ANSWER: See Answer
 
No explanation is available for this question!
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