The roots of the equation 7x^2-6x+1=0 are and , where 2 and 2 are the angles of a triangle. Which one of the following is correct?

NDA 2024 Mathematics question

The roots of the equation are and , where and are the angles of a triangle. Which one of the following is correct?

Answer: (C)

and . So , i.e. . The third angle

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Question ID VK-029915