1.

If from any point P on thex2 + y2 +y2gx+ 2fy + c sin?a + (g?+f?) cosa0, tangents are drawn to the circleclex2 + y2 + 2gx 2fy + c0 then the angle between the tangents is(A) Îą(B) 2 Îą(D) 32

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