The area bounded by the circles `x^2+y^2=1,x^2+y^2=4,` and the pair of lines `sqrt(3)(x^2+y^2)=4x y` is equal to `pi/2` (b) `(5pi)/2` (c) `3pi` (d) `pi/4`

The area bounded by the curves x^2+y^2=1,x^2+y^2=4 and the pair of lines sqrt3 x^2+sqrt3 y^2=4xy , in the first quadrant is (1) pi/2 (2) pi/6 (3) pi/4 (4) pi/3

The area bounded by the curves x^2+y^2=1,x^2+y^2=4 and the pair of lines sqrt3 x^2+sqrt3 y^2=4xy , in the first quadrant is (1) pi/2 (2) pi/6 (3) pi/4 (4) pi/3

The area bounded by the curves x^2+y^2=1,x^2+y^2=4 and the pair of lines sqrt3 x^2+sqrt3 y^2=4xy , in the first quadrant is (1) pi/2 (2) pi/6 (3) pi/4 (4) pi/3

The area bounded by the curves x^(2)+y^(2)=1,x^(2)+y^(2)=4 and the pair of lines sqrt(3)x^(2)+sqrt(3)y^(2)=4xy ,in the first quadrant is (1)(pi)/(2)(2)(pi)/(6)(3)(pi)/(4)(4)(pi)/(3)

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

tan^(-1)(x/y)-tan^(-1)(x-y)/(x+y) is equal to (A) pi/2 (B) pi/3 (C) pi/4 (D) (-3pi)/4

tan^(-1)(x/y)-tan^(-1)(x-y)/(x+y) is equal to(A) pi/2 (B) pi/3 (C) pi/4 (D) (-3pi)/4