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"For the Cosine Rule of any triangle ABC, the b² is equal to" Multiple Choice Questions (MCQ) on surface area of pyramid with choices a² - c² + 2ab cos a, a³ + c³ - 3ab cos a, a² + c² - 2ac cos b, and a² - c² 4bc cos a for free online courses. Solve trigonometry and trigonometry formulas quiz questions for online certificate programs for online certificate courses.

MCQ: For the Cosine Rule of any triangle ABC, the b² is equal to

1. a² - c² + 2ab cos A
2. a³ + c³ - 3ab cos A
3. a² + c² - 2ac cos B
4. a² - c² 4bc cos A

C

MCQ: For the Cosine Rule of any triangle ABC, the c² is equal to

1. c² + a² + 2ac cos C
2. a² + b² - 2ab cos C
3. a² + b² + 2ab cos A
4. a² - b² + 2ab sin A

B

MCQ: Considering The Cosine Rule of any triangle ABC, the possible measures of angle A includes

1. angle A is obtuse
2. angle A is acute
3. angle A is right-angle
4. all of above

D

MCQ: For the Cosine Rule of any triangle ABC, the a² is equal to

1. b² + c² - 2bc cos A
2. b² + a² - 2ac cos A
3. b³ + c³ - 2bc cos B
4. b² - c² + 3bc cos C

A

MCQ: The Cosine Rule is also known as

1. Sine triangle
2. Cosine Formula
3. Cosine Triangle
4. Cosine Area

B