Question

Convert-3 into polar form​

Answer 1

:-))

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Answer 2

Answer:

In polar form equation is  

r = - $\frac{3}{cos}$θ

Explanation:

If a point  ( x , y )  is written as  ( r , θ )

in polar coordinates, then  x = r o s θ   and  y = r  sin θ .

As such in polar form equation  x = − 3

can be written as  r  cos θ  =  − 3   or  r  =  − 3/ cos θ

Step-by-step explanation:

In polar form, z = (r,θ) = r·cosθ + j·r·sinθ. and θ is the argument i.e. the angle measured anticlockwise up from the positive real axis. The moduli are multiplied and the arguments are added.

The complex number −3i can be expressed as a complex number in polar form as ⟨3,3π2⟩.

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 . Example: Express the complex number in polar form.