Question

show -3 in polar form​

Answer 1

The polar form of a complex number z=a+bi is z=r(cosθ+isinθ) , where r=|z|=a2+b2−−−−−−√ , a=rcosθ and b=rsinθ , and θ=tan−1(ba) for a>0 and θ=tan−1(ba)+π or θ=tan−1(ba)+180° for a<0 .

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