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  • 14-03-2015
  • Mathematics
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ERROR ANALYSIS-Describe and Correct the ERROR in Finding the Distance Between the points (-3,-2) and (7,4)

ERROR ANALYSISDescribe and Correct the ERROR in Finding the Distance Between the points 32 and 74 class=

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Аноним Аноним
  • 14-03-2015
[tex]Rule = \sqrt{ (x2 - x1)^{2} + (y2- y1)^{2}} [/tex]

[tex]( 7 - (-3)) ^{2} + (4 - (-2))^{2}[/tex]
[tex] \sqrt{10^{2} + 6^{2}} = \sqrt{100 +36} = \sqrt{136} [/tex]
[tex] \sqrt{136} = 2\sqrt{34} [/tex]

Namely,

Shouldn't be [tex]( 7 - (-3)) ^{2} - (4 - (-2))^{2}[/tex]

Should be ; [tex]( 7 - (-3)) ^{2} + (4 - (-2))^{2}[/tex]

Have a nice day..


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