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 one year ago
Could anyone help with this? i got as far as sqrt(4) * sin[coz^1(sqrt(4)/ 2sqrt(22)] but its wrong? Find the distance the point P(1,5,5) is to the line through the two points
Q(1,2,5), and R(4,4,2).
 one year ago
Could anyone help with this? i got as far as sqrt(4) * sin[coz^1(sqrt(4)/ 2sqrt(22)] but its wrong? Find the distance the point P(1,5,5) is to the line through the two points Q(1,2,5), and R(4,4,2).

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amistre64
 one year ago
Best ResponseYou've already chosen the best response.0dw:1359730906752:dw

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0\[cos\alpha=\frac{u.v}{u~v}\] \[\alpha=cos^{1}\frac{u.v}{u~v}\] \[PQ~sin~\alpha=PQ~cos^{1}\frac{u.v}{u~v}\]

mags093
 one year ago
Best ResponseYou've already chosen the best response.0i had this formula: [((sqrt(ad)^2 +(be)^2+(cf)^2 * sin(c0s^1([(ad)g + (be)h + (cf)i] / sqrt(ad)^2 +(be)^2+(cf)^2 sqrtg^2+h^2=i^2]))

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0i never remember formulas to well so I tend to have to reconstruct a method that will work out :) that was the simplest one I could manufacture :)

mags093
 one year ago
Best ResponseYou've already chosen the best response.0i dont understand your method as we did the other one! could you show me how to use yours?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0I know the basic formula to fine the angle between QR and PQ, i know that the distance is a perp line value from P to R; which is equal to the hypotenuse times the sine of the angle. P(1,5,5) Q(1,2,5)  <0,3,0>; PQ = 3 Q(1,2,5) R(4,4,2).  <3,2,3>; QR = sqrt(22) im curious if they gave us a rt triangle to begin with now :)

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0P(1,5,5) R(4,4,2)  <3,1,3> <0,3,0>pq <3,2,3>qr <3,1,3>pr <3,1,3>pr  0+3+0 9+92 <0,3,0>pq <3,2,3>qr  06+0 nope, nothings at right angles to begin with :)

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0\[3~cos^{1}\frac{6}{3\sqrt{22}}=abt~6.034\] is the distance from the line to the given point.

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0dw:1359731838243:dw

mags093
 one year ago
Best ResponseYou've already chosen the best response.0so it should be 3sqrt22 not 2sqrt22?
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