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0 votes
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in Determinants by (51.0k points)

Let a, b, c be real numbers with a2 + b2 + c= 1. Then the equation

\(\begin{vmatrix}ax-by-c & bx+ay&cx+a\\bx+ay&-ax+by-c&cy+b\\cx+a&cy+b&-ax-by+c\end{vmatrix} = 0\) represents

(a) a parabola

(b) pair of lines

(c) a straight line

(d) circle

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1 Answer

+1 vote
by (51.3k points)

Correct option is (c) a straight line

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