CBSE Class 10 Answered
Solve for 'x'&'y'
Asked by | 30 Jan, 2009, 05:59: PM
Expert Answer
(a+2b)x+(2a-b)y=2 eqn(1)
(a-2b)x+(2a+b)y=3 eqn(2)
by adding both eqn
2ax+4ay=5 eqn(3)
by substracting eqn (2) from eqn(1)
4bx+2by=-1 eqn(4)
on simplifying eqn(3) and (4)
x+2y= 5/2a eqn(3)
2x+y= -1/2b eqn(4)
multiplying eqn (4) to 2 and substracting from eqn (3)
-3x = (5/2a) +(1/b)
x = -(5b+2a)/6ab
eqn(3) Χ2 -eqn(4)
3y = (5/a) +(1/2b)
y = (10b+a)/6ab
Answered by | 30 Jan, 2009, 07:59: PM
CBSE 10 - Maths
Asked by hanugraha | 30 May, 2010, 07:53: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by hanugraha | 30 May, 2010, 07:13: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by shobhitdc | 29 May, 2010, 04:59: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by ROJAAPPA | 29 May, 2010, 12:58: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by shobhitdc | 29 May, 2010, 10:52: AM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by devanshmudgal | 28 May, 2010, 07:31: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by shobhitdc | 28 May, 2010, 01:12: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by shobhitdc | 28 May, 2010, 01:08: PM
ANSWERED BY EXPERT
