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JEE Advanced Mathematics question

MathematicsSolution of TrianglesJEE Advanced

Not in JEE syllabus

The sides of a are cm, cm and cm. Then , where is the smallest angle of the triangle, is equal to

Answer: (B)

Solution

The smallest side is , so the smallest angle is . With , :

C=Missing argument for \frac\frac{a^2+b^2-c^2}{2a

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Question ID VK-108683