a-ib . The value dern wind are uni Epect...

a-ib . The value dern wind are uni Epective 3) is ICUT of 'a' for which the equations 28) 1 29) 3 35)1 36) 3x – y + az v + az =1, 2x + y + z = 2, . 42)2 43) x+2y - az = – - = -1 fail to have unique solution is 49) 2 50) 172 2) -7/2 3) 2/7 4)-2/7 56)4 57 63)4 64

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