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Multiply & divide complex numbers in polar form

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Problem

w1=6(cos(11π12)+isin(11π12))w2=3(cos(π6)+isin(π6))\begin{aligned} w_1&=6 \left( \cos\left(\dfrac{11\pi}{12}\right)+i\sin\left(\dfrac{11\pi}{12}\right) \right) \\\\ w_2&=3 \left( \cos\left(\dfrac{\pi}{6}\right)+i\sin\left(\dfrac{\pi}{6}\right) \right) \end{aligned}
What is w, start subscript, 1, end subscript, dot, w, start subscript, 2, end subscript?
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