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The angle between the tangents to the circles x^2 +y^2 =1 and x^2 +y^2=2 at the point (1,0) is A)90 B) 30 C) 60 D) 45 The angle between the tangents to the circles x^2 +y^2 =1 and x^2 +y^2=2 at the point (1,0) isA)90B) 30 C) 60D) 45
Dear StudentThe locus of 90 degree intersection of tangents to the circle is x^2+y^2=1so the ans is 90
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