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JEE MAIN - Mathematics Hindi (2021 - 16th March Morning Shift - No. 19)
यदि $$\mathop {\lim }\limits_{x \to 0} {{a{e^x} - b\cos x + c{e^{ - x}}} \over {x\sin x}} = 2$$ हो, तो a + b + c का मान ____________ के बराबर होता है।
Answer
4
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