yes or no???
Asked by | 11th Apr, 2009, 11:10: AM
for the first equation,
substituting x=-1, y=1 gives,
Hence the (-1,1) satisfies the first equation.
we see that for the second equation,
substitution of x=-1 and y=1 does not satisy the equation 2. So it can't be the solution of the given system. Remember that a solution must satisfy both the equations.
Answered by | 11th Apr, 2009, 11:21: AM
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