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Class 12 Continuity And Differentiability · Mcq Single Correct1 Marksdifferentiability_parameters

Class 12 Maths · Continuity And Differentiability · Mcq Single Correct #14

Let f(x)=x² for x≥0 and kx for x<0. Find k for differentiability at 0.

✅ Step-by-Step Solution

Final Answer: Option (D): 0
  1. All k give continuity at 0. The one-sided derivatives are k from the left and 0 from the right, so k=0.

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