मराठी

If Lim X → a X 9 − a 9 X − a = 9 , Find All Possible Values of A.

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प्रश्न

If \[\lim_{x \to a} \frac{x^9 - a^9}{x - a} = 9,\] find all possible values of a

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उत्तर

\[\lim_{x \to a} \left[ \frac{x^9 - a^9}{x - a} \right] = 9\]
\[ \Rightarrow 9 a^8 = 9\]
\[ \Rightarrow a^8 = 1\]
\[ \Rightarrow a = \pm 1\]

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पाठ 29: Limits - Exercise 29.5 [पृष्ठ ३३]

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आर.डी. शर्मा Mathematics [English] Class 11
पाठ 29 Limits
Exercise 29.5 | Q 13 | पृष्ठ ३३

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