JEE Main & Advanced
Mathematics
Differentiation
Question Bank
Numerical Value Type Questions - Limits and Derivatives
question_answer
If \[\underset{x\to 1}{\mathop{\lim }}\,\frac{{{x}^{4}}-1}{x-1}=\underset{x\to k}{\mathop{\lim }}\,\frac{{{x}^{3}}-{{k}^{3}}}{{{x}^{2}}-{{k}^{2}}},\] then value of k up to two decimal places is