JEE MAIN - Mathematics Hindi (2023 - 13th April Evening Shift - No. 5)

यदि $$\lim_\limits{x \rightarrow 0} \frac{e^{a x}-\cos (b x)-\frac{c x e^{-c x}}{2}}{1-\cos (2 x)}=17$$ है, तो $$5 a^{2}+b^{2}$$ बराबर है
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