" 4."x+y>=4,2x-y<0

Area of triangle formed by straight lines 4x - y = 4, 3 x + 2y = 14 and y -axis is

Solve the following systems of equations: 2x-y=4, 4x-2y=6.

The centre of the cirlces cutting three circles x^2+y^2-2x-4y+4=0, x^2+y^2-4x-6y+4=0, x^2+y^2-4x-8y+4=0 orthogonally is

The number of common tangents to the circles: x^2+y^2=4 , x^2+y^2 -4x +2y-4=0 is :

Identify the terms,their coefficients for each of the following expressions: 4x^2 y^2 - 4 x^2 y^2 z^2 + z^2

Draw the rough sketch and find the area of the region : {(x, y) : 4 x^2 + y^2 le 4, 2 x + y ge 2} .

Find the centre and radius of the following circles : 4x^2 + 4y^2 - 4x + 12y - 15 = 0