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The value of ‘a’ for which the equations fail to have unique solution
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a
72
b
-72
c
27
d
-27
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Correct option is B
the condition for a non-homogeneous system fails to have a unique solution is A=0⇒A=3 −1 a2 1 11 2 −a=0⇒3−a−2+1−2a−1+a4−1=0⇒-3a-6-2a-1+3a=0⇒-7=2a⇒a=-7/2Similar Questions
The number of matrices whose entries are either and for which the system has exactly two distinct solutions, is
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