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प्रश्न
Solve for x : log10 (x - 10) = 1
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उत्तर
log10 ( x - 10 ) = 1
⇒ log10 ( x - 10 ) = log1010
⇒ x - 10 = 10
⇒ x = 10 + 10
⇒ x = 20.
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