1.

From P(–4, 0), tangents PA and PA′ are drawn to a circle, x2+y2=4. Where A and A′ is point of contact and A lies above x-axis. Rhombus PAP′A′ is completed. Column-IColumn-IIColumn-III(I)A≡(−1,√3)(i)PA=2√3(P)P′ lies on the circle, x2+y2=4(II)A′≡(−1,−√3)(ii)Area of ΔPAA′=3√3 sq.units(Q)ΔPAA′ is equilateral(III)P′=(4,0)(iii)PP′=6(R)P′ lies outside the circle , x2+y2=4(IV)P′=(2,0)(iv)Area of ΔPAA′=4√3 sq.units(S)P′ lies inside circle , x2+y2=4 Which one of the following is correct?

Answer»

From P(4, 0), tangents PA and PA are drawn to a circle, x2+y2=4. Where A and A is point of contact and A lies above x-axis. Rhombus PAPA is completed.

Column-IColumn-IIColumn-III(I)A(1,3)(i)PA=23(P)P lies on the circle, x2+y2=4(II)A(1,3)(ii)Area of ΔPAA=33 sq.units(Q)ΔPAA is equilateral(III)P=(4,0)(iii)PP=6(R)P lies outside the circle , x2+y2=4(IV)P=(2,0)(iv)Area of ΔPAA=43 sq.units(S)P lies inside circle , x2+y2=4

Which one of the following is correct?




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