\(Rule = \sqrt{ (x2 - x1)^{2} + (y2- y1)^{2}}\)
\(( 7 - (-3)) ^{2} + (4 - (-2))^{2}\)
\(\sqrt{10^{2} + 6^{2}} = \sqrt{100 +36} = \sqrt{136}\)
\(\sqrt{136} = 2\sqrt{34}\)
Namely,
Shouldn't be \(( 7 - (-3)) ^{2} - (4 - (-2))^{2}\)
Should be ; \(( 7 - (-3)) ^{2} + (4 - (-2))^{2}\)
Have a nice day..
