Solve for u

[nycmathguy]

Revisiting precalculus just for fun.

 

[MathLover1]

m^2=(1/2)(s^2+t^2)-(1/4)u^2
(1/4)u^2=(1/2)(s^2+t^2)-m^2
u^2=4(1/2)(s^2+t^2)-m^2
u^2=2(s^2+t^2)-m^2
u=sqrt(2(s^2+t^2)-m^2)

 

[nycmathguy]

m^2=(1/2)(s^2+t^2)-(1/4)u^2
(1/4)u^2=(1/2)(s^2+t^2)-m^2
u^2=4(1/2)(s^2+t^2)-m^2
u^2=2(s^2+t^2)-m^2
u=sqrt(2(s^2+t^2)-m^2)

Ok. No more bouncing around. We are doing calculus. So, let's stick to one course at a time. I would like for us to go through an entire college algebra textbook in the future, if you so desire to continue this journey.