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15, {(x, y): y S 4x, 4x2 + 4y? <9} Ι ει ...

15, {(x, y): y S 4x, 4x2 + 4y? <9} Ι ει 5

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Find the area of the region {(x,y):y^(2)<=4x,4x^(2)+4y^(2)<=9}

Find the area of the region {(x,y):y^(2)<=4x,4x^(2)+4y^(2)<=9}

Find the area of the region ,{(x,y):y^(2)<=4x,4x^(2)+4y^(2)<=9}

Prove that the radii of the circles x^2 +y^2 = 4, 4x^2 + 4y^2 - 8x-24y+15=0 and x^2 + y^2 - 4y - 5 =0 are in arithmetic progression.

Prove that the radii of the circles x^2 +y^2 = 4, 4x^2 + 4y^2 - 8x-24y+15=0 and x^2 + y^2 - 4y - 5 =0 are in arithmetic progression.

( 10 )/( x+ y) + (2 ) /(x - y ) = 4 , ( 15)/( x + y ) - (9) /( x - y) = - 2 .

Z= 4x + 7y x + 2y le 20, x + y le 15, x ge 0, y ge 0 .

The equation of the circle passing through (1/2, -1) and having pair of straight lines x^2 - y^2 + 3x + y + 2 = 0 as its two diameters is : (A) 4x^2 + 4y^2 + 12x - 4y - 15 = 0 (B) 4x^2 + 4y^2 + 15x + 4y - 12 = 0 (C) 4x^2 + 4y^2 - 4x + 8y + 5 = 0 (D) none of these

The equation of the circle passing through (1/2, -1) and having pair of straight lines x^2 - y^2 + 3x + y + 2 = 0 as its two diameters is : (A) 4x^2 + 4y^2 + 12x - 4y - 15 = 0 (B) 4x^2 + 4y^2 + 15x + 4y - 12 = 0 (C) 4x^2 + 4y^2 - 4x + 8y + 5 = 0 (D) none of these