Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) The dimensions of a rectangle are continuously changing. The width increases at rate of 3 inch/sec. while the length decreases at rate of 2 inch/sec. At one instant if the each of rectangle is 20 inch, then the rate of change of area after 3 seconds is- - Sarthaks eConnect

The dimensions of a rectangle are continuously changing. The width increases at rate of 3 inch/sec. while the length decreases at rate of 2 inch/sec. At one instant if the each of rectangle is 20 inch, then the rate of change of area after 3 seconds is-

The dimensions of a rectangle are continuously changing. The width increases at rate of 3 inch/sec. while the length decreases at rate of 2 inch/sec. At one instant if the each of rectangle is 20 inch, then the rate of change of area after 3 seconds is-

A.

16 `text(inch)^2`/sec

B.

-16 `text(inch)^2`/sec

C.

32 `text(inch)^2`/sec

D.

-32 `text(inch)^2`/sec