AP EAMCET · Maths · Matrices
The values of such that the matrix has no inverse, are
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Inverse of a matrix does not exist when the determinant of the matrix is zero. 13225t47-t-6=0 ⇒1-30-7t+t2-3-12-4t+214-2t-20=0 ⇒-30-7t+t2+36+12t-12-4t=0 ⇒t2+t-6=0 ⇒t2+3t-2t-6=0 ⇒t+3t-2=0 ⇒t=-3 and 2.
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