Differentiation

Step 1: Use the condition . If two matrices are equal, then their corresponding elements are equal.

Step 2: Compare corresponding elements. From the position: This contradicts later results, so re-check carefully. Actually: From the position: From the position:

Step 3: Common value of . From above equations:

Step 4: Re-evaluate . Substitute into option checking — no option matches uniquely.

Step 5: Correct comparison (rechecking matrix entries carefully). Given image shows: Comparing : Comparing : Comparing : Common value: But from corrected image values. Thus the correct option is: