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Grade: 12
        

The no.of points on X-axis That are at a distance c units(c<3) from (2,3) is?


a)1 b)2 c)0 d)3


Plz explain.

10 years ago

Answers : (1)

Pratham Ashish
17 Points
							

hi , consider the situation in the following image,

 

4305-795_4788_untitled.bmp

 see if we draw a circle by taking the given point its centre , with agiven radius , say c1

then what the circle represents ?  you can say that , all the points on the circle are at the same distant from the centre & it will be the radius .

all the point which are inside the circle wii be at a less distance & all the points ouyside will be at agreater distance

so, its clear that if we draw circles with aradius lee than 3 it clearly can,t touch the x - axis. means there will be no such point on it which wii be at c distance(radius) apart from the given centre (2,3)

10 years ago
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