Can Bernoulli's Equation be Applied Between Two Points on a Vortex Sheet?

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Can someone help me with this, I need to prove that a flat vortex sheet of strength [tex]\gamma(s)[/tex] at an angle of attack [tex]\alpha[/tex] with the horizontal and has a [tex]p_{2} - p_{1} = \rho V_{\infty} \gamma cos(\alpha)[/tex]

I just need to mathematically manipulate 2 formulas, namely the following two:
[tex]\gamma = u1 - u2[/tex] where u1 and u2 are the tangential flow velocities above and below the vortex sheet, respectively. I know that [tex]V_{\infty}[/tex] is coming in parallel to the horizontal
Also, I need to use the Bernuolli equation: [tex]p_{1} + \frac{1}{2}\rho V_{1}^2 = p_{2} + \frac{1}{2}\rho V_{2}^2[/tex]

this should be easy but i can't figure it out..any help is appreciated!
 
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1 - Bernoulli's equation can be applied only along a stream line , can't be applied between a point these two points

2 - try to calculate the vortex strength , and integrate them to get the forces , then divide by the areas ..to get the resultant pressure.