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वक्र `y=e^(-|x|)` के उस बिन्दु पर स्पर्श रेखा का समीकरण जहाँ पर यह रेखा x = 1 को काटता है, होगा -

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वक्र `y=e^(-|x|)` के उस बिन्दु पर स्पर्श रेखा का समीकरण जहाँ पर यह रेखा x = 1 को काटता है, होगा -
A. `e(x+y)=1`
B. `y+ex=1`
C. `(x+y)=e`
D. `x+ey=2`
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Correct Answer - D
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