Find K such that the matrix is singular. I have no idea how to go about solving this. Can anyone lead me in the right direction. it would be much appreciated. Thank you
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Originally Posted by mybrohshi5 Find K such that the matrix is singular. I have no idea how to go about solving this. Can anyone lead me in the right direction. it would be much appreciated. Thank you A matrix is singular iff its determinant is 0 let your matrix called A then det (A) =0 since A is singular det (A)= (-2*5*-2)+(-1*-5*(10+k))+(72)-(150+15k)-(40)-(12)=0 (20)+(50+5k)+(72)-(150+15k)-(40)-(12)=0 -100-10k+40=0 -60-10k=0 k=-6
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