Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section A

Chapter

Applications of Derivatives

Question:

$\begin{bmatrix}2x+1 & 4x\\y+3 & 2y-5\end{bmatrix} = \begin{bmatrix}x+2 & 4\\7 & 3\end{bmatrix}$

Options:

$x=2, y=2$

$x=4, y=1$

$x=1, y=4$

$x=3, y=1$

Correct Answer:

$x=1, y=4$

Explanation:

The correct answer is Option (3) → $x=1, y=4$

On comparison

$4x=4⇒x=1$

$2y-5=3⇒2y=8$

$⇒y=4$