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प्रश्न
If a b + b log a - 1 = 0, then prove that ba.ab = 10
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उत्तर
Given alogb + bloga - 1 = 0
⇒ log(b)a + log(a)b - log10 = 0
⇒ log(ba . ab) = log 10
∴ ba . ab = 10.
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