[" (6) my "x+y=5" cal "2x-3y=4],[" 24,"x+y=5....,(1)],[" 24"2x-3y=4 pi.." (2) "80],[" 2120"$201quad " (1) "51,3" as "3cos11" i "]

(i) 2x+3y=4;3x-y=-5

1 + 5x + 3y = 9 2x 3y = 12 X = (x, y) - 4

Solve for (x,y) : 2x-3y =5 , 3x+4y = -1 .

4x -5y-11z=12,. x-3y+z=1 2x + 3y-7z = 2

If (3x -4y) : (2x -3y) = (5x -6y) : (4x -5y) , find : x : y .

The lines 2 x+11 y-5=0,4 x-3 y-2=0 and 24 x+7 y-20=0

(1)/(2(3x+4y))=(1)/(5(2x-3y))=(1)/(4),

if cos x=(3)/(5) " and cos " y=(-24)/(25) " where " .(3pi)/(2) lt x lt 2 pi " and " pi lt y lt .(3pi)/(2) find the values of (i) " sin (x+y) "" ""(ii) cos (x-y) "" ""(iii) tan (x+y) "