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find the distance (-1,2) (2,-4)

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use distance formula
use the formula : d = sqrt((y2-y1)^2 + (x2-x1)^2)

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Other answers:

I don't understand how! I need help please?
take (-1,2) as \((x_1,y_1) \) take (2,-4) as \((x_2,y_2) \)
then use the formula above
i need to know how to solve it!! i know the formula but i need an example
find distance between (2,4) and (5,6)
(1,2) to (3,4) distance is sqrt((3-1)^2 + (4-2)^2) = sqrt(8)
this formula comes from pythagoreas, c^2 = a^2 + b^c
understood ?@jabbers! ?
.... sigh. sidenote. things don't come automatically to most people - you have to read them and try to understand
where did 5 come from
i took second point as (5,6)
second point is (2,-4)
i was doing an example!!
look above !
now try to do your question ! :)
what did u get ?
i put it in my calculator and got an error. @AravindG
i got \[3\sqrt{5}\]
you are right !!
thank u. finally!

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