JEE MAIN - Mathematics Hindi (2024 - 27th January Morning Shift - No. 10)
यदि $$\mathrm{a}=\lim _\limits{x \rightarrow 0} \frac{\sqrt{1+\sqrt{1+x^4}}-\sqrt{2}}{x^4}$$ तथा $$\mathrm{b}=\lim _\limits{x \rightarrow 0} \frac{\sin ^2 x}{\sqrt{2}-\sqrt{1+\cos x}}$$ हैं, तो $$\mathrm{ab}^3$$ का मान है :
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