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Properties of Triangle question

2020 · Shift 1 · Q34
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  5. /2020 · Shift 1 · Q34

Properties of Triangle question

2020 · Shift 1 · Q34

JEE AdvancedMathematicsProperties of TriangleNumerical+4 / −1
In a triangle PQR, let a = QR, b = RP, and c = PQ. If |a| = 3, |b| = 4 and a .( c− b)c . (a− b)=∣a∣∣a∣+∣b∣{{a\,.(\,c - \,b)} \over {c\,.\,(a - \,b)}} = {{|a|} \over {|a| + |b|}}c.(a−b)a.(c−b)​=∣a∣+∣b∣∣a∣​, then the value of |a ×\times× b|2 is ......
Numerical answer
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