Transposition of formula K SUBJECT

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deljohn Posts: 1, Reputation: 1

New Member

#1

May 20, 2010, 01:32 PM

transposition of formula K SUBJECT

X=kgt2
2u(1+k)
make k the subject
(top 2 meaning sqaured)

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ebaines Posts: 12,131, Reputation: 1307

Expert

#2

May 21, 2010, 05:39 AM

Do you mean this?

$<br /> x = \frac {kgt^2} {2u(1+k)}<br />$

If so, you can multiply through by 2u(1+k) to get:

$<br /> 2u(1+k)x = kgt^2 \\<br /> 2ux+2ukx = kgt^2 \\<br /> 2ux = kgt^2 - 2ukx = k(gt^2 - 2ux) \\<br /> k = \frac {2ux} {gt^2 - 2ux}<br />$

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