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AP Calculus BC · 2 steps
Problem: Evaluate ∫(3x² + 2x) dx
Step 1: Split: ∫3x²dx + ∫2x dx
Step 2: = x³ + x² ← forgot +C
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Knowledge Map
AP Calc BC
Unit 3 · Differentiation Rules
Chain Rule
S
Product Rule
A
Quotient Rule
B
Implicit Diff.
C
Related Rates
C
Weakest Concept
Related Rates
Unit 4 · Practice recommended
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Practice Problem C-Tier Gap
Targeting: Related Rates
Problem
Your Solution
1
2
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Units
Unit 3 3
Unit 5 5
Unit 7 2
Unit 3 — Differentiation Rules
3 mistakes · Product Rule
d/dx [x³ · sin x]
⚡ Execution
Forgot second term — wrote x³cos x, missing 3x²sin x
d/dx [x² / (x + 1)]
💡 Conceptual
Divided derivatives instead of applying quotient rule
d/dx [eˣ · ln x]
⚡ Execution
Sign error: wrote −(1/x)eˣ for the second product term
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