English
Hindi
10-1.Circle and System of Circles
hard

વર્તૂળ $x^2 + y^2 + 2gx + 2fy + \alpha = 0$ પરના કોઈપણ બિંદુ પરથી વર્તૂળ $x^2 + y^2 + 2gx + 2fy + \beta = 0$ પર દોરેલ સ્પર્શકની લંબાઈ :

A

$\sqrt {\beta \,\, - \,\,\alpha } $

B

$\sqrt {\alpha \beta } $

C

$\sqrt {\alpha \, - \,\,\beta } $

D

$\sqrt {\alpha \,\, + \;\,\beta } $

Solution

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Standard 11
Mathematics

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