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Question
Class 12MathematicsInverse Trigonometry Continuity and Differentiability

If y = log tan (π/4 + x/2), show that dy/dx= sec. Also find the value of d²y/dx² at x = π/4.

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If y = log tan (π/4 + x/2), show that dy/dx= sec. Also find the value of d²y/dx² at x = π/4. | Shiksha Nation