Question
If the planes $4 x+3 y+2 z+7=0,2 x+y-4 z+1=0$ and $x+k y-7 z-2=0$ have a common line of intersection then the value of $\mathrm{k}$ is(a) 1(b) 0(c) 2(d) $-1$
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We are given that these planes have a common line of intersection. Show more…
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