Let d
and
A =
, 
If the minimum value of det(A) is 8, then a value of d is
(a)
7
(b)
2
(c)
5
(d)
2
Let d and
A =, If the minimum value of det(A) is 8, then a value of d is
(a)
7
(b)
2
(c)
5
(d)
2
Question ID - 56816 | SaraNextGen Top Answer
Let d and
A =, If the minimum value of det(A) is 8, then a value of d is
(a)
7
(b)
2
(c)
5
(d)
2
|
Let d A = |
|||
|
(a) |
|
(b) |
2 |
|
(c) |
|
(d) |
2 |
1 Answer
127 votes
Answer Key / Explanation : (d) -
detA =
(
=
=(2+sin
= 4 + 4d 
2sin
= 
= (d +2
For a given d, minimum value of
det(A) = (d +2
⇒ d = 1 or 
5
127 votes
Answer Link
127