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Class 12 Continuity And Differentiability · Conceptual Answer1 Markschain_and_product_rules

Class 12 Maths · Continuity And Differentiability · Conceptual Answer #112

For y=[sin(x/2)+cos(x/2)]², find y′ at x=π/6.

✅ Step-by-Step Solution

Final Answer: √3/2
  1. Expand y=1+sin x. Its derivative is cos x, which equals √3/2 at π/6.
  2. √3/2

📋 CBSE Stepwise Marking Scheme

  • [0.5 marks] Expand y=1+sin x. Its derivative is cos x, which equals √3/2 at π/6.
  • [0.5 marks] √3/2

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