Question

In a triangle ABC, the value of 2abcosC is equal to
1)a² +6²
2) a²+6²+ c²
3)a²+6² - c²
4)c² - a² - 6²

Answer 1

Step-by-step explanation:

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Answer 2

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In a triangle ABC, the value of 2abcosC is equal to a²+6² - c².