Mathematics General Science Test Medium Mode

Sr. #	Questions	Answers Choice
1	Equation of normal to the circle x2 + y2 =25 at (5cosθ,5sinθ)	xcosθ+ysinθ =5 xcosθ -ysinθ =0 xsinθ -ycosθ =0 None of these
2	For what value of k, 3x -2y+ k= 0 is tangent to the circle x2 +y2 +6x -4y =0	k=0 k=0 or 26 k = 26 k=-13
3	Two circles x2 +y2 +8x -9= 0 and x2+y2+6y +k =0 touchinternallyif the value of k is	k = 9 k = ±9 k=-9 k=11
4	The line joining the center of a circle to the midpoint of the chord is	Perpendicular to the tnagent Perpendicular to the normal Perpendicular to the chord Perpendicular to the chord
5	Equation of the chord of contact to the tangents drawn from (-3,4) to the circle x2 + y2 = 21	-3x + 4y =21 4x - 3x = 0 -3x + 4y = 25 None of these

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