If `(x_1-x_2)^2+(y_1-y_2)^2 =a^2`, `(x_2-x_3)^2+(y_2-y_3)^2=b^2`, `(x_3-x_1)^2 +(y_3-y_1)^2=c^2...
89 views · Published 12 October 2018 · 2:27 · Indexed 21 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If `(x_1-x_2)^2+(y_1-y_2)^2 =a^2`, `(x_2-x_3)^2+(y_2-y_3)^2=b^2`, `(x_3-x_1)^2 +(y_3-y_1)^2=c^2` and `2s =a +b+c` then `1/4 |(x_1,y_1,1),(x_2,y_2,1), (x_3,y_3,1)|^2` is equal to
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