Paper 1 · Differentiation Lesson 4 of 21

Differentiation 4 – PTA

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You’ll learn

  • Differentiate trig powers like sin³(5x²) with the PTA (Power–Trig–Algebra) method
  • Write the three factors: power rule, trig derivative (same angle), angle's derivative
  • Keep the angle unchanged through the Power and Trig steps
  • Multiply through coefficients and collect them at the front of the answer

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