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If 3 is the logarithm of 343, then the base is ..... (a) 5 (b) 7 (c) 6 (d) 9 |
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Answer» (b) 7 ⇒ logx 343 = 3 ⇒ 343 = x3 (.i.e.,) 73 = x3 ⇒ x = 7 ⇒ x = 7 |
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