The angles at which the circles `(x-1)^2+y^2=10a n dx^2+(y-2)^2=5` intersect is `pi/6` (b) `pi/4` (c) `pi/3` (d) `pi/2`

The angles at which the circles (x-1)^2+y^2=10 and x^2+(y-2)^2=5 intersect is pi/6 (b) pi/4 (c) pi/3 (d) pi/2

The angles at which the circles (x-1)^(2)+y^(2)=10andx^(2)+(y-2)^(2)=5 intersect is (pi)/(6) (b) (pi)/(4) (c) (pi)/(3) (d) (pi)/(2)

The angle subtended by common tangents of two ellipses 4(x-4)^2+25 y^2=100a n d4(x+1)^2+y^2 =4 at the origin is pi/3 (b) pi/4 (c) pi/6 (d) pi/2

The angle subtended by common tangents of two ellipses 4(x-4)^2+25 y^2=100a n d4(x+1)^2+y^2 at the origin is pi/3 (b) pi/4 (c) pi/6 (d) pi/2

The angle subtended by common tangents of two ellipses 4(x-4)^2+25 y^2=100a n d4(x+1)^2+y^2 at the origin is pi/3 (b) pi/4 (c) pi/6 (d) pi/2

The angle subtended by common tangents of two ellipses 4(x-4)^2+25 y^2=100a n d4(x+1)^2+y^2=4 at the origin is (a) pi/3 (b) pi/4 (c) pi/6 (d) pi/2

If the line xcostheta=2 is the equation of a transverse common tangent to the circles x^2+y^2=4 and x^2+y^2-6sqrt(3)x-6y+20=0 , then the value of theta is (5pi)/6 (b) (2pi)/3 (c) pi/3 (d) pi/6

The angle of intersection between the curves x^(2) = 4(y +1) and x^(2) =-4 (y+1) is (a) pi/6 (b) pi/4 (c) 0 (d) pi/2

Area lying in the first quadrant and bounded by the circle x^(2)+y^(2)=4 the line x=sqrt(3)y and x-axis , is (a) pi/2 (b) pi/4 (c) pi/3 (d) pi

The angle of intersection of the parabola y^2=4\ a x and x^2=4a y at the origin is pi//6 (b) pi//3 (c) pi//2 (d) pi//4