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x-y+b=0 is a chord of the circle x^2 + y...

`x-y+b=0` is a chord of the circle `x^2 + y^2 = a^2` subtending an angle `60^0` in the major segment of the circle. Statement 1 : `b/a = +- sqrt(2)`. Statement 2 : The angle subtended by a chord of a circle at the centre is twice the angle subtended by it at any point on the circumference. (A) Both 1 and 2 are true and 2 is the correct explanation of 1 (B) Both 1 and 2 are true and 2 is not a correct explanation of 1 (C) 1 is true but 2 is false (D) 1 is false but 2 is true

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