[sin(fec x)/(1-9y)=(5)/(8)],[(1-9-3y)/(19)]

Find number of triplets (x,y,z) satisfying the system (9x^(2))/(1+9x^(2))=(3)/(2)y,(9y^(2))/(1+9y^(2))=(3)/(2)z,(9z^(2))/(1+9z^(2))=(3)/(2)x

(4)/(x)+(3)/(y)=1,(8)/(x)-(9)/(y)=7

Solve: (9-3y)/(1-9y)=8/5

A point on the ellipse,4x^(2)+9y^(2)=36, where the normal is parallel to the line,4x-2y-5=0 is (A) ((8)/(5),-(9)/(5))(B)(-(9)/(5),(8)/(5))(C)((8)/(5),(9)/(5))(D)((9)/(5),(8)/(5))

Find the value of y if x=y/(1-9y) " and " x=(-y)/(1-5y) .

Verify the given equation for y = 29/19 (17 - 9y)/(19 - 3y) = 31/137

Solve for x and y : (x+1)/(2)+(y-1)/(3)=9, (x-1)/(3)+(y+1)/(2)=8 .

On the ellipse 4x^(2)+9y^(2)=1, the points at which the tangents are parallel to the line 8x=9y are ((2)/(5),(1)/(5))( b ) (-(2)/(5),(1)/(5))(-(2)/(5),-(1)/(5))( d) ((2)/(5),-(1)/(5))