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is equal to?
Correct Answer Is : 1 + a2 + b2 + c2 If A = 
, then cofactors of the elements of 2nd row are? Correct Answer Is : (-39, 27, 11) The value of x, if 
= 0, is equal to? Correct Answer Is : ±√2 The determinant
is equal to zero, if a, b, c are in? Correct Answer Is : G. P. Value of λ for which the homogeneous system of equations 2x + 3y - 2z = 0, 2x - y + 3z = 0, 7x + λy - z = 0 has non-trivial solutions is? Correct Answer Is : 57/10 If a, b, c are in A.P. , then the value of 
is? Correct Answer Is : 0 
is equal to? Correct Answer Is : Zero The value of 
is? Correct Answer Is : -8 Let 
= x + iy, then Correct Answer Is : X = 0, y = 0 If 
= k, then 
= ? Correct Answer Is : 6k