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 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 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

The angle between the circles x^(2)+y^(2)-4x-6y-3=0 x^(2)+y^(2)+8x-4y+11=0 , 1.)(pi)/(2) 2.) (pi)/(4) 3.) (pi)/(6) 4.)(pi)/(6)

The angle between the circles x^(2)+y^(2)-4x-6y-3=0 . x^(2)+y^(2)+8x-4y+11=0 ( 1 - (pi)/(2) 2 - (pi)/(4) 3- (pi)/(3) 4- ( pi)/(6) )

The angle between the two tangents from the origin to the circle (x-7)^(2)+(y+1)^(2)=25 equals (A) (pi)/(4) (B) (pi)/(3) (C) (pi)/(2) (D) (pi)/(6)

The angle of intersection of the curves y=2\ s in^2x and y=cos2\ x at x=pi/6 is pi//4 (b) pi//2 (c) pi//3 (d) pi//6

Area lying in the first quadrant and bounded by the circle x^2+y^2=4 and the lines x=" "0" "a n dx=" "2 is (A) pi (B) pi/2 (C) pi/3 (D) pi/4

The angle between the tangents to the curve y=x^(2)-5x+6 at the point (2,0) and (3,0) is (pi)/(2) (b) (pi)/(3) (c) pi (d) (pi)/(4)

If the tangent at the point P(theta) to the ellipse 16x^(2)+11y^(2)=256 is also a tangent to the circle x^(2)+y^(2)-2x=15, then theta=(2 pi)/(3)( b )(4 pi)/(3) (c) (5 pi)/(3) (d) (pi)/(3)

The period of cos5 theta is (a) pi^(2) (b) 2 pi (c) 2 pi/5 (d) pi/3