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Trigonometry Properties of Triangles

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In a triangle ABC, a=4, b=3,∠A=60°. Then c is the root of the equation

A. c²-3c-7=0

B. c²+3c+7=0

C. c²-3c+7=0

D. c²+3c-7=0

E. None of the above

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Correct choice: A

Explanation:

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Eamcet Mathematics Trigonometry Properties of Triangles

Eamcet Mathematics
Trigonometry Properties of Triangles