`y :1/(x+1)+1/(y+1)=10 ;1/(x+1)-1/(y+1)=4`

If (x_1, y_1) be the centroid of the triangle formed by a line L and coordinate axes then equation of line L is (1) (3x)/(x_1)+(3y)/(y_1)=1 (2) xx_1+y y_1=3 (3) x/(3x_1)+y/(3y_1)=1 (4) x/(x_1)+y/(y_1)=1 (5) x x_1+y y_1=1

If (x_1, y_1) be the centroid of the triangle formed by a line L and coordinate axes then equation of line L is a. (3x)/(x_1)+(3y)/(y_1)=1 b. xx_1+y y_1=3 c. x/(3x_1)+y/(3y_1)=1 d. x/(x_1)+y/(y_1)=1 e. x x_1+y y_1=1

((1)/(x) + (1)/(y)) ((1)/(x) - (1)/(y)) = ?

If (1)/(x)+(1)/(y)=(1)/(4) and (1)/(x)-(1)/(y)=(3)/(4) , then x=

Find x,y,z using Cramer's Rule,if 2/(x+y)-4/(y-1)+1/(z+1)=-7,4/(x+y)+1/(y-1)-3/(z+1)=-11 ,3/(x+y)+1/(y-1)+1/(z+1)=2

(x + 1) / (y) = 1, (x) / (y + 1) = (1) / (2)

(x/y)^(-1)=(x)^(-1)/(y)^(-1)

Solve for x&y : (x+1)/(y-1)=1; x/(y+1)=1/2

1/(3x+y)+1/(3x-y)=3/4 and 1/(3x+y)-1/(3x-y)= -1/4

Find the value of ( 1/x + 1/y ) ( 1/x - 1/y ) ( 1/x^2 + 1/y^2 )