Is this the correct way to calculate geostrophic wind velocity

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Formula I found online:

$$V_{GWS} = \frac{1}{2\Omega\sin(lat)} \cdot \frac{1}{\rho} \cdot \frac{\Delta p}{d}$$

Here is my problem: enter image description here

My solution: $$V_{GWS} = \frac{1}{14.6\cdot10^{-5}\cdot(-0.43)} \cdot \frac{1}{0.70} \cdot \frac{800}{400000} \frac{\text{Pa}}{\text{m}}= -4.55$$

Wind speed shouldn't be negative, right? So something seems off. Would greatly appreciate the help. Am confused at what direction the wind would be moving too.

Thank you

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$\sin(35\,\text{rad})=-0.4282$ but $\sin(35°)=0.5736$. Everything else is OK. Put your calculator in degrees mode!

Oh yes, wind flows counterclockwise around a low pressure center in the northern hemisphere so along an isobar to the northeast.