Question

Please help... what is the equation of circles of radius unity?

Answer 1

radius unity?

Answer 2

if you're talking about unit circles i think a property about them is the radius is always 1

Answer 3

oh.. so (x-h)^2+(y-k)^2 = 1? is this the equation or just x^2+y^2 = 1?

Answer 4

for any general circle,,eqn is (x-a)^2 + (y-b)^2 =r^2
where (a,b) is the center of the circle and r is radius

Answer 5

@undefined01 Your former equation is more "general"
your latter equation is a special case where h = k = 0

Answer 6

x^2 + y^2 =1 will be a subcase of (x-a)^2 + (y-b)^2 =r^2 where center is at origin and radius =1

Answer 7

@undefined01 the center is not fixed in unit circles

Answer 8

it just said that circles of radius unity so which means i'll use the general form.?

Answer 9

sounds like a plan :)

Answer 10

(x-h)^2 + (y-k)^2 = 1 because radius is always 1 in unit circles but the center is unknown. that is if circle of radius unity means radius circles

Answer 11

means unit circles*

Answer 12

Thanky you very much everyone..!!

Answer 13

no problem :)