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प्रश्न
Solve log4 28x = 2log28
उत्तर
Given log428x = 2log28
log4 28x = 2log223
log4 28x = 23log22
log4 28x = 23 = 8
28x = 48
(22)4x = 48
⇒ (4)4x = 48
⇒ 4x = 8
⇒ x = `8/4` = 2
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