🛠️ JEE➗ Maths

Let \(A=\left(\begin{array}{ccc}{[x+1]} & {[x+2]} & {[x+3]} \\ {[x]} & {[x+3]} & {[x+3]} \\ {[x]} & …

Q1

Let \(A=\left(\begin{array}{ccc}{[x+1]} & {[x+2]} & {[x+3]} \\ {[x]} & {[x+3]} & {[x+3]} \\ {[x]} & {[x+2]} & {[x+4]}\end{array}\right)\) where \([t]\) denotes the greatest integer less than or equal to \(t\). If \(\operatorname{det}(A)=192\), then the set of values of \(x\) is the interval.

[JEE Main 2021, 27 Aug (Shift 2)]

a

\([60,61)\)

b

\([68,69)\)

c

\([62,63)\)

d

\([65,66)\)

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