NDA 2020 Mathematics question
Consider the following statements : 1. If in a triangle ABC, and , then it must be an obtuse-angled triangle. 2. There exists no triangle ABC with , and . Which of the above statements is/are correct?
Answer: (B)
Solution
1: , and gives , so , : the triangle is right-angled, not obtuse-angled; incorrect. 2: with , $B
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