JELET (WB Lateral Entry — Engineering/Pharmacy) Practice Quiz

Question 1

The determinant of the 2 by 2 identity matrix is:

Accepted Answer

1

Question 2

A square matrix A possesses an inverse if and only if its determinant is:

Accepted Answer

Non-zero

Question 3

The derivative of $\sin x$ with respect to x is:

Accepted Answer

$\cos x$

Question 4

At a point of local maximum of a smooth function, the first derivative is zero and the second derivative is:

Accepted Answer

Negative

JELET (WB Lateral Entry — Engineering/Pharmacy) — Discussion