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What is the polar form of -3+ v3i?

What is the polar form of -3+ v3i?-example-1

1 Answer

7 votes
  • z=-3+√3i
  • a=-3,b=√3

So


\\ \rm\Rrightarrow r=√(a^2+b^2)


\\ \rm\Rrightarrow r=\sqrt{(-3)^2+(√(3))^2}


\\ \rm\Rrightarrow r=√(9+3)


\\ \rm\Rrightarrow r=√(12)


\\ \rm\Rrightarrow r=2√(3)

Find theta


\\ \rm\Rrightarrow \theta=tan^(-1)((y)/(x))


\\ \rm\Rrightarrow \theta=tan^(-1)((√(3))/(3))


\\ \rm\Rrightarrow \theta=tan^(-1)((-1)/(√(3)))


\\ \rm\Rrightarrow \theta=(5\pi)/(6)

Polar form


\\ \rm\Rrightarrow r(cos\theta+isin\theta)


\\ \rm\Rrightarrow 2√(3)(cos(5\pi)/(6)+isin(5\pi)/(6))

User Saurav Srivastava
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