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The equation of common chord of the circles
2x^{2}+2y^{2}+10 x+6 y=0 and x^{2}+y^{2}+3 x+5 y=0 is

Option: 1

y = 2x


Option: 2

y = x


Option: 3

y + x = 0


Option: 4

None of these


Answers (1)

best_answer

\\\text{The equation of common chord of two circles is }S_1-S_2=0\\ \text{Re-writing }S_1\text{ in standard form }x^2+y^2+5x+3y=0 \\\text{Equation of common chord }\\ 2x-2y=0\\ y=x

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rishi.raj

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