Convert the Cartesian coordinates (−6,−4)\displaystyle {\left(-{6},-{4}\right)} to polar coordinates with r>0\displaystyle {r}\gt{0} and 0≤θ<2π\displaystyle {0}\le\theta\lt{2}\pi.

r=\displaystyle {r}=  
Enter exact value.

θ=\displaystyle \theta=  

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