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Evaluate the following Limits: limx→0[ax+bx+cx-3x] - Mathematics and Statistics

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प्रश्न

Evaluate the following Limits: `lim_(x -> 0)[("a"^x + "b"^x + "c"^x - 3)/x]`

योग
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उत्तर

`lim_(x -> 0)[("a"^x + "b"^x + "c"^x - 3)/x]`

= `lim_(x -> 0) (("a"^x - 1) + ("b"^x - 1) + ("c"^x - 1))/x`

= `lim_(x -> 0) (("a"^x - 1)/x + ("b"^x - 1)/x + ("c"^x - 1)/x)`

= `lim_(x -> 0)(("a"^x - 1)/x) + lim_(x -> 0)(("b"^x - 1)/x) + lim_(x -> 0)(("c"^x - 1)/x)`

= log a + log b + log c    ...`[lim_(x -> 0) ("a"^x - 1)/x = log "a"]`

= log (abc).

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Limits of Exponential and Logarithmic Functions
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अध्याय 7: Limits - MISCELLANEOUS EXERCISE - 7 [पृष्ठ १०६]

APPEARS IN

बालभारती Mathematics and Statistics 1 (Commerce) [English] Standard 11 Maharashtra State Board
अध्याय 7 Limits
MISCELLANEOUS EXERCISE - 7 | Q II. 11) | पृष्ठ १०६

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