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If the system of equations x – ky – z = 0, kx – y – z = 0 and x + y –z = 0 has a non-zero solution, then k =

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If the system of equations x – ky – z = 0, kx – y – z = 0 and x + y –z = 0 has a non-zero solution, then k =

(a)   0 

(b)   1 

(c)   –1 

(d)   2 

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1 Answer

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by (53.3k points)
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Best answer

Correct option  (b,c)

Explanation:

k2 –1 = 0

gives k =  ±1 

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