Gujarati
10-1.Circle and System of Circles
hard

वृत्तों ${x^2} + {y^2} + 4x + 6y = 19$, ${x^2} + {y^2} = 9$ व ${x^2} + {y^2} - 2x - 2y = 5$ का मूलकेन्द्र है

A

$(1, 1)$

B

$(-1, 1)$

C

$(1, -1)$

D

$(0, 1)$

Solution

(a) मूलाक्ष $4x + 6y = 10$ या $2x + 3y = 5$….$(i)$

$2x + 2y = 4$ या $x + y = 2$….$(ii)$

$(i)$ व $(ii)$ के प्रतिच्छेद बिन्दु $(1, 1)$ है।

Standard 11
Mathematics

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