If { \left( { x }_{ 1 }-{ { x }_{ 2 } } \right)  }^{ 2 }+{ \left( | Filo
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Class 12

Math

Algebra

Determinants

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If , , and , then the value of is

  1. none of these
Correct Answer: Option(c)
Solution:
Given : ......

Area of any triangle with vertices and is given by
.........

, ,

are the length of sides of a

Also, area of with sides is

.........


...........

From and , we get


Squaring both sides, we have


Comparing above equation with , we get 
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