CBSE Class 10 Answered
PLS SOLVE......
Asked by | 10 May, 2009, 10:20: AM
Expert Answer
x/2+y=0.8 ..................(1)
7/x+y=10 .................(2)
Subtrating (1) from (2)
7/x - x/2 = 9.2
On solving the above equation would reduce to a quadratic equation x2 + 18.4x -14 = 0
Here b2 - 4ac < 0, therefore the above equation has imaginary roots which can be obtained by using the formula
x = (-b b2 -4ac) / 2a
Answered by | 12 May, 2009, 01:02: PM
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