Question

(1) Write the parametric equations of the circles.
(i) x2 + y2 + 2x - 4y - 4 = 0
It is x square and y square

plz give answer of this question who is intelligent.​

Answer 1

hii dear

here is your answer

x2+y2+2x−4y=0x2+y2+2x−4y=0

x2+2x+y2−4y=0x2+2x+y2−4y=0

x2+2x+1−1+y2−4y+4−4=0x2+2x+1−1+y2−4y+4−4=0

(x+1)2−1+(y−2)2−4=0(x+1)2−1+(y−2)2−4=0

(x+1)2+(y−2)2=5(x+1)2+(y−2)2=5

For a circle with centre at (h,k) and radius r, the a parametric form is x=h+rcos(θ)x=h+rcos⁡(θ) and y=k+rsin(θ)

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