Find differential dy for each of the following functions: y=ex2-5x+7cosx2-1

Find differential dy for each of the following
functions: $y = e^{x^{2} - 5 x + 7} \cos (x^{2} - 1)$

Matching exercise

Match the items on the right to the items on the left.

Step - 1

Step - 2

Step - 3