Question

parametric equation of circles x²+y²=4​

Answer 1

Answer:

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Step-by-step explanation:

4(x

2

+y

2

)=9

Divide the equation by 4

x

2

+y

2

=

4

9

Here, r

2

=

4

9

⟹r=

2

3

The parametric equations of the circle x

2

+y

2

=r

2

in parameter θ are x=rcosθ, y=rsinθ

The parametric equations of the given circle is,

x=

2

3

cosθ, y=

2

3

sinθ and 0≤θ≤2π