DeterminantHard

Question

The number of values of k for which the system of equations (k + 1)x + 8y = 4k kx + (k + 3) y = 3k -1 has infinitely many solutions, is / are

Options

A.0
B.1
C.2
D.∞

Solution

For infinitely many solutions, we must have
           
⇒         k = 1

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