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Mathematics 19 Online
OpenStudy (anonymous):

Topic :- Circle [Co-ordinate geometry]

OpenStudy (anonymous):

Find the number of integral points which lie on or inside the circle \[\huge x^2+y^2=4\]

OpenStudy (anonymous):

@ganeshie8

OpenStudy (anonymous):

After thinking a lot i feel this should be done by trial and error , we can use power of a point to do that

ganeshie8 (ganeshie8):

how ?

OpenStudy (anonymous):

like x^2 +y^2 -4 =0 plug in any random point say (1,0) 1^2+0^2-4 <0 so lies inside the circle like that

ganeshie8 (ganeshie8):

Ohk..

ganeshie8 (ganeshie8):

|dw:1414595749884:dw|

ganeshie8 (ganeshie8):

|dw:1414595837654:dw|

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