Saved Bookmarks
| 1. |
Findthe value of x and y2/x+3/y=9/xy,4/x+9/y=21/xy |
|
Answer» Answer: X=1,Y=3 Step-by-step explanation: 2/x + 3/y = 9/xy . 4/x +9/y = 21/xy (3x+2y)xy =9/xy , (9x+4y) = 21/xy 3x+2y = 9 .......(1) , 9x+4y = 21..........(2) maltiply by eq(1)×3 -eq(2) 9x+6y = 27 9x+4y = 21 ______________ subtraction 2y = 6 y = 3 y's value puting in eq(1) 3x+2×3= 9 3x = 9-6 x= 3/3 x =1 (x,y)=(1,3)ans JAI SHREE KRISHNA |
|