If y = (1 + x) (1 + x 2 ) (1 + x 4 ) ... (1+x^ 2^ n ) , then dy dx at x = 0 is
Mathematics · JEE Main · NTA Exams — Limit, Continuity and Differentiability
If y = (1 + x) (1 + x2) (1 + x4) ... \(\left(1+x^{2^{n}}\right)\), then \(\frac{\mathrm{dy}}{\mathrm{dx}}\) at x = 0 is
- –1
- 1
- 0
- None of these
Answer
(B) 1
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