At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions.

See more answers at brainly.com

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions

x^2 +y^2 =1

explain why please
ill give you a medal if you explained it well

there isnt anyway of explaining it really lol

the general form a circle with centre (a,b) and radius r is \[(x-a)^2 +(y-b)^2 =r^2\]

i can explain

ok lets go back to geometry definition

you there?

ok

ohh its phytagorus , yeh

yes

the locus definition

a circle is a set of points such that, the distance from the center is fixed

right

a circle is a locus of points whose distance from a point is constant, that distance is the radius

thats the ancient greek definition, going back when

now fast forward to cartesian world, we have x y graph

your center lets say for convenience is origin (0,0)

ok so far?

your doing it the really long way, not very good explaination lol

ill do it

ok
but please explain easier to understand

he wants a thorough explanation

we want d( (x,y) (0,0) = r

the distance between (0,0) and the points (x,y) to be the constant radius

ok so far? , and we know the distance between any two points using the distance formula

elec, this is not easy to understand? i can show a graph , but this interface sucks balls

you can just go straight to the general case centre (a,b)
\[\sqrt{(x-a)^2 +(y-b)^2} = r \]

please explain it like you are explaining it to a kid

then square both sides

d ( (x1,y1) (x2,y2) ) = sqrt ( (x1-x2)^2 + (y1-y2)^2)

right that works

WAIT!

, so sqrt ( (x-h)^2 + ( y - k)^2) = r

this is a deductive proof my friend :)

on my ntbk

if you draw a line from your center to a point on the circle, and then draw a triangle

you get pythagorean triangle

please don't give me a complicated solution

ok youre annoying, bye

then?

youre doing it right

then what?

lols

then the world ends tomorrow

brb, i will use a whiteboard , this is no good

ahhhh ok

a more interesting question has peaked my curiosity, brb

ill just give you both a medal^_^

for answering and explaining^_^

complex numbers: find a, b such that (-bi)^2 = a^2 ?

this question is ambiguous, ok one sec

here click on this http://www.twiddla.com/542364

what is this?

circle centre (2,3), radius 2

its pretty basic

it is alright know^_^