Understand the concept
Derivative sign helps identify increasing or decreasing behaviour.
For f(x)=x², find f′(3)
- Step 1: f′(x)=2x
- Step 2: evaluate at 3.
Final answer: 6
For f(x)=x³ find f′(2)
Show the answer
12
Try another similar question and explain each step aloud. Refer to your school syllabus for topic level and notation.