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Write the following complex numbers in t...

Write the following complex numbers in the polar form: `-1-i`

Text Solution

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Modulus`abs(z)=sqrt((-1)^2+(-1)^2)=sqrt 2`
`tan alpha= abs(frac{Im(z)}{Re(z)})`
`tan alpha=1=>alpha=frac{pi}{4}`
The point representing `z` lies in the third quadrant.
Argument `theta` of `z` is `theta=-(pi-alpha)=-(pi-frac{pi}{4})=-(3pi)/{4}`
Polar form is `z=sqrt 2(cos(3pi)/4-i sin (3pi)/{4})`
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