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In any triangle ABC, Prove by vector method c^2=a^2+b^2-2abcosC
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What is the value of x in the figure below? if necessary, round your answer to the nearest tenth of a unit. 12 d 4 b оа. 3.1 ов. 6.9 ос. 4 od. 12
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In any triangle ABC, Prove by vector method c^2=a^2+b^2-2abcosC...
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